From c40612041809fe289aba58aefa170bbe784aba1f Mon Sep 17 00:00:00 2001
From: t7yang <t7yang@gmail.com>
Date: Mon, 10 Jan 2022 08:38:07 +0800
Subject: remove name attribute for zh-CN

---
 .../reference/global_objects/math/abs/index.html     | 12 ++++++------
 .../reference/global_objects/math/acos/index.html    | 14 +++++++-------
 .../reference/global_objects/math/asin/index.html    | 14 +++++++-------
 .../reference/global_objects/math/atan/index.html    | 14 +++++++-------
 .../reference/global_objects/math/atan2/index.html   | 14 +++++++-------
 .../reference/global_objects/math/cbrt/index.html    | 10 +++++-----
 .../reference/global_objects/math/clz32/index.html   | 12 ++++++------
 .../reference/global_objects/math/cos/index.html     | 14 +++++++-------
 .../reference/global_objects/math/e/index.html       | 10 +++++-----
 .../reference/global_objects/math/exp/index.html     | 14 +++++++-------
 .../reference/global_objects/math/expm1/index.html   | 12 ++++++------
 .../reference/global_objects/math/floor/index.html   | 14 +++++++-------
 .../reference/global_objects/math/fround/index.html  | 20 ++++++++++----------
 .../reference/global_objects/math/hypot/index.html   |  8 ++++----
 .../reference/global_objects/math/imul/index.html    |  2 +-
 .../reference/global_objects/math/ln10/index.html    | 10 +++++-----
 .../reference/global_objects/math/ln2/index.html     | 10 +++++-----
 .../reference/global_objects/math/log/index.html     | 12 ++++++------
 .../reference/global_objects/math/log10/index.html   | 12 ++++++------
 .../reference/global_objects/math/log10e/index.html  | 10 +++++-----
 .../reference/global_objects/math/log1p/index.html   | 10 +++++-----
 .../reference/global_objects/math/log2/index.html    | 12 ++++++------
 .../reference/global_objects/math/log2e/index.html   | 10 +++++-----
 .../reference/global_objects/math/max/index.html     | 12 ++++++------
 .../reference/global_objects/math/min/index.html     | 14 +++++++-------
 .../reference/global_objects/math/pi/index.html      | 10 +++++-----
 .../reference/global_objects/math/pow/index.html     | 12 ++++++------
 .../reference/global_objects/math/random/index.html  |  6 +++---
 .../reference/global_objects/math/round/index.html   | 12 ++++++------
 .../reference/global_objects/math/sign/index.html    | 12 ++++++------
 .../reference/global_objects/math/sin/index.html     | 14 +++++++-------
 .../reference/global_objects/math/sinh/index.html    | 12 ++++++------
 .../reference/global_objects/math/sqrt/index.html    | 10 +++++-----
 .../reference/global_objects/math/sqrt1_2/index.html | 10 +++++-----
 .../reference/global_objects/math/sqrt2/index.html   | 10 +++++-----
 .../reference/global_objects/math/tan/index.html     | 12 ++++++------
 .../reference/global_objects/math/trunc/index.html   |  8 ++++----
 37 files changed, 212 insertions(+), 212 deletions(-)

(limited to 'files/zh-cn/web/javascript/reference/global_objects/math')

diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/abs/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/abs/index.html
index 397ad9724b..e86e8064c2 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/abs/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/abs/index.html
@@ -9,24 +9,24 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/abs
 
 <p><math display="block"><semantics><mrow><mstyle mathvariant="monospace"><mrow><mo lspace="0em" rspace="thinmathspace">Math.abs</mo><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo></mrow></mstyle><mo>=</mo><mrow><mo stretchy="false">|</mo><mi>x</mi><mo stretchy="false">|</mo></mrow><mo>=</mo><mrow><mo>{</mo><mtable columnalign="left left"><mtr><mtd><mi>x</mi></mtd><mtd><mtext>if</mtext><mspace width="1em"></mspace><mi>x</mi><mo>≥</mo><mn>0</mn></mtd></mtr><mtr><mtd><mo>-</mo><mi>x</mi></mtd><mtd><mtext>if</mtext><mspace width="1em"></mspace><mi>x</mi><mo>&lt;</mo><mn>0</mn></mtd></mtr></mtable></mrow></mrow><annotation encoding="TeX">{\mathtt{\operatorname{Math.abs}(x)}} = {|x|} = \begin{cases} x &amp; \text{if} \quad x \geq 0 \\ -x &amp; \text{if} \quad x &lt; 0 \end{cases} </annotation></semantics></math></p>
 
-<h2 id="Syntax" name="Syntax">语法</h2>
+<h2 id="Syntax">语法</h2>
 
 <pre class="syntaxbox">Math.abs(<em>x</em>);</pre>
 
-<h3 id="Parameters" name="Parameters">参数</h3>
+<h3 id="Parameters">参数</h3>
 
 <dl>
  <dt><code>x</code></dt>
  <dd>一个数值</dd>
 </dl>
 
-<h2 id="Description" name="Description">说明</h2>
+<h2 id="Description">说明</h2>
 
 <p><code>由于 Math.abs()</code> <code>是</code> <code>Math</code> 中的一个静态方法，你应该通过 <code>Math.abs()</code> <code>调用。</code>（Math 不是构造器）</p>
 
-<h2 id="Examples" name="Examples">示例</h2>
+<h2 id="Examples">示例</h2>
 
-<h3 id="Example:_Math.abs_behavior" name="Example:_Math.abs_behavior"><code>Math.abs()函数的行为</code></h3>
+<h3 id="Example:_Math.abs_behavior"><code>Math.abs()函数的行为</code></h3>
 
 <p>传入一个非数字形式的字符串或者 undefined/empty 变量，将返回 <code>NaN</code>。传入 null 将返回 0。</p>
 
@@ -115,7 +115,7 @@ Math.abs();         // NaN</pre>
 </table>
 </div>
 
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 
 <ul>
  <li>The {{jsxref("Global_Objects/Math", "Math")}} object it belongs to.</li>
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/acos/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/acos/index.html
index 032174b53e..b50eb69568 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/acos/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/acos/index.html
@@ -5,23 +5,23 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/acos
 ---
 <div>
  {{JSRef("Global_Objects", "Math")}}</div>
-<h2 id="Summary" name="Summary">概述</h2>
+<h2 id="Summary">概述</h2>
 <p><code><strong>Math.acos()</strong></code> 返回一个数的反余弦值（单位为弧度），即：</p>
 <p><math display="block"><semantics><mrow><mo>∀</mo><mi>x</mi><mo>∊</mo><mo stretchy="false">[</mo><mrow><mo>-</mo><mn>1</mn></mrow><mo>;</mo><mn>1</mn><mo stretchy="false">]</mo><mo>,</mo><mspace width="thickmathspace"></mspace><mstyle mathvariant="monospace"><mrow><mo lspace="0em" rspace="thinmathspace">Math.acos</mo><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo></mrow></mstyle><mo>=</mo><mo lspace="0em" rspace="0em">arccos</mo><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo><mo>=</mo><mtext> the unique </mtext><mspace width="thickmathspace"></mspace><mi>y</mi><mo>∊</mo><mo stretchy="false">[</mo><mn>0</mn><mo>;</mo><mi>π</mi><mo stretchy="false">]</mo><mspace width="thinmathspace"></mspace><mtext>such that</mtext><mspace width="thickmathspace"></mspace><mo lspace="0em" rspace="0em">cos</mo><mo stretchy="false">(</mo><mi>y</mi><mo stretchy="false">)</mo><mo>=</mo><mi>x</mi></mrow><annotation encoding="TeX">\forall x \in [{-1};1],\;\mathtt{\operatorname{Math.acos}(x)} = \arccos(x) = \text{ the unique } \; y \in [0; \pi] \, \text{such that} \; \cos(y) = x</annotation></semantics></math></p>
-<h2 id="Syntax" name="Syntax">语法</h2>
+<h2 id="Syntax">语法</h2>
 <pre class="syntaxbox">Math.acos(<em>x</em>) </pre>
-<h2 id="Parameters" name="Parameters">参数</h2>
+<h2 id="Parameters">参数</h2>
 <dl>
  <dt>
   <code>x</code></dt>
  <dd>
   一个数值</dd>
 </dl>
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 <p><code>acos</code> 方法以 -1 到 1 的一个数为参数，返回一个 0 到 pi （弧度）的数值。如果传入的参数值超出了限定的范围，将返回 <code>NaN</code>。</p>
 <p>由于 <code>acos</code> 是 <code>Math</code> 的静态方法，所以应该像这样使用：<code>Math.acos()</code>，而不是作为你创建的 <code>Math</code> 实例的属性（<code>Math</code> 不是一个构造函数）。</p>
-<h2 id="Examples" name="Examples">示例</h2>
-<h3 id="Example:_Using_Math.acos" name="Example:_Using_Math.acos">例子：使用 <code>Math.acos</code></h3>
+<h2 id="Examples">示例</h2>
+<h3 id="Example:_Using_Math.acos">例子：使用 <code>Math.acos</code></h3>
 <pre class="brush:js">Math.acos(-2);  // NaN
 Math.acos(-1);  // 3.141592653589793
 Math.acos(0);   // 1.5707963267948966
@@ -103,7 +103,7 @@ Math.acos(2);   // NaN
   </tbody>
  </table>
 </div>
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 <ul>
  <li>The {{jsxref("Global_Objects/Math", "Math")}} object it belongs to.</li>
  <li>{{jsxref("Math.asin()")}}</li>
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/asin/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/asin/index.html
index 7e6017abbd..2386375e80 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/asin/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/asin/index.html
@@ -5,23 +5,23 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/asin
 ---
 <div>
  {{JSRef("Global_Objects", "Math")}}</div>
-<h2 id="Summary" name="Summary">概述</h2>
+<h2 id="Summary">概述</h2>
 <p><code><strong>Math.asin()</strong></code> 方法返回一个数值的反正弦（单位为弧度），即：</p>
 <p><math display="block"><semantics><mrow><mo>∀</mo><mi>x</mi><mo>∊</mo><mo stretchy="false">[</mo><mrow><mo>-</mo><mn>1</mn></mrow><mo>;</mo><mn>1</mn><mo stretchy="false">]</mo><mo>,</mo><mspace width="thickmathspace"></mspace><mstyle mathvariant="monospace"><mrow><mo lspace="0em" rspace="thinmathspace">Math.asin</mo><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo></mrow></mstyle><mo>=</mo><mo lspace="0em" rspace="0em">arcsin</mo><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo><mo>=</mo><mtext> the unique </mtext><mspace width="thickmathspace"></mspace><mi>y</mi><mo>∊</mo><mrow><mo>[</mo><mrow><mo>-</mo><mfrac><mi>π</mi><mn>2</mn></mfrac><mo>;</mo><mfrac><mi>π</mi><mn>2</mn></mfrac></mrow><mo>]</mo></mrow><mspace width="thinmathspace"></mspace><mtext>such that</mtext><mspace width="thickmathspace"></mspace><mo lspace="0em" rspace="0em">sin</mo><mo stretchy="false">(</mo><mi>y</mi><mo stretchy="false">)</mo><mo>=</mo><mi>x</mi></mrow><annotation encoding="TeX">\forall x \in [{-1};1],\;\mathtt{\operatorname{Math.asin}(x)} = \arcsin(x) = \text{ the unique } \; y \in \left[-\frac{\pi}{2}; \frac{\pi}{2}\right] \, \text{such that} \; \sin(y) = x</annotation></semantics></math></p>
-<h2 id="Syntax" name="Syntax">语法</h2>
+<h2 id="Syntax">语法</h2>
 <pre class="syntaxbox">Math.asin(<em>x</em>)</pre>
-<h3 id="Parameters" name="Parameters">参数</h3>
+<h3 id="Parameters">参数</h3>
 <dl>
  <dt>
   <code>x</code></dt>
  <dd>
   一个数值</dd>
 </dl>
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 <p><code>asin</code> 方法接受 -1 到 1 之间的数值作为参数，返回一个介于 <math><semantics><mrow><mo>-</mo><mfrac><mi>π</mi><mn>2</mn></mfrac></mrow><annotation encoding="TeX">-\frac{\pi}{2}</annotation></semantics></math> 到 <math><semantics><mfrac><mi>π</mi><mn>2</mn></mfrac><annotation encoding="TeX">\frac{\pi}{2}</annotation></semantics></math> 弧度的数值。如果接受的参数值超出范围，则返回 <code>NaN</code>。</p>
 <p>由于 <code>asin</code> 是 <code>Math</code> 的静态方法，所有应该像这样使用：<code>Math.asin()</code>，而不是作为你创建的 <code>Math</code> 实例的方法。</p>
-<h2 id="Examples" name="Examples">示例</h2>
-<h3 id="Example:_Using_Math.asin" name="Example:_Using_Math.asin">例子：使用 <code>Math.asin()</code></h3>
+<h2 id="Examples">示例</h2>
+<h3 id="Example:_Using_Math.asin">例子：使用 <code>Math.asin()</code></h3>
 <pre class="brush:js">Math.asin(-2);  // NaN
 Math.asin(-1);  // -1.5707963267948966 (-pi/2)
 Math.asin(0);   // 0
@@ -102,7 +102,7 @@ Math.asin(2);   // NaN</pre>
   </tbody>
  </table>
 </div>
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 <ul>
  <li>The {{jsxref("Global_Objects/Math", "Math")}} object it belongs to.</li>
  <li>{{jsxref("Math.acos()")}}</li>
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/atan/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/atan/index.html
index 460bd0de51..0bdf09d234 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/atan/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/atan/index.html
@@ -5,23 +5,23 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/atan
 ---
 <div>
  {{JSRef("Global_Objects", "Math")}}</div>
-<h2 id="Summary" name="Summary">概述</h2>
+<h2 id="Summary">概述</h2>
 <p><code><strong>Math.atan()</strong></code> 函数返回一个数值的反正切（以弧度为单位），即：</p>
 <p><math display="block"><semantics><mrow><mstyle mathvariant="monospace"><mrow><mo lspace="0em" rspace="thinmathspace">Math.atan</mo><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo></mrow></mstyle><mo>=</mo><mo lspace="0em" rspace="0em">arctan</mo><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo><mo>=</mo><mtext> the unique </mtext><mspace width="thickmathspace"></mspace><mi>y</mi><mo>∊</mo><mrow><mo>[</mo><mrow><mo>-</mo><mfrac><mi>π</mi><mn>2</mn></mfrac><mo>;</mo><mfrac><mi>π</mi><mn>2</mn></mfrac></mrow><mo>]</mo></mrow><mspace width="thinmathspace"></mspace><mtext>such that</mtext><mspace width="thickmathspace"></mspace><mo lspace="0em" rspace="0em">tan</mo><mo stretchy="false">(</mo><mi>y</mi><mo stretchy="false">)</mo><mo>=</mo><mi>x</mi></mrow><annotation encoding="TeX">\mathtt{\operatorname{Math.atan}(x)} = \arctan(x) = \text{ the unique } \; y \in \left[-\frac{\pi}{2}; \frac{\pi}{2}\right] \, \text{such that} \; \tan(y) = x</annotation></semantics></math></p>
-<h2 id="Syntax" name="Syntax">语法</h2>
+<h2 id="Syntax">语法</h2>
 <pre class="syntaxbox">Math.atan(<em>x</em>)</pre>
-<h3 id="Parameters" name="Parameters">参数</h3>
+<h3 id="Parameters">参数</h3>
 <dl>
  <dt>
   <code>x</code></dt>
  <dd>
   一个数值</dd>
 </dl>
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 <p><code>atan</code> 返回一个 <math><semantics><mrow><mo>-</mo><mfrac><mi>π</mi><mn>2</mn></mfrac></mrow><annotation encoding="TeX">-\frac{\pi}{2}</annotation></semantics></math> 到 <math><semantics><mfrac><mi>π</mi><mn>2</mn></mfrac><annotation encoding="TeX">\frac{\pi}{2}</annotation></semantics></math> 弧度之间的数值。</p>
 <p>由于 <code>atan</code> 是 <code>Math</code> 的静态方法，所以应该像这样使用：<code>Math.atan()</code>，而不是作为你创建的 <code>Math</code> 实例的方法。</p>
-<h2 id="Examples" name="Examples">示例</h2>
-<h3 id="Example:_Using_Math.atan" name="Example:_Using_Math.atan">例子：使用 <code>Math.atan</code></h3>
+<h2 id="Examples">示例</h2>
+<h3 id="Example:_Using_Math.atan">例子：使用 <code>Math.atan</code></h3>
 <pre class="brush:js">Math.atan(1);  // 0.7853981633974483
 Math.atan(0);  // 0
 </pre>
@@ -98,7 +98,7 @@ Math.atan(0);  // 0
   </tbody>
  </table>
 </div>
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 <ul>
  <li>The {{jsxref("Global_Objects/Math", "Math")}} object it belongs to.</li>
  <li>{{jsxref("Math.acos()")}}</li>
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/atan2/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/atan2/index.html
index 64064017c7..b4ded024ac 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/atan2/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/atan2/index.html
@@ -5,22 +5,22 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/atan2
 ---
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 
-<h2 id="Summary" name="Summary">概述</h2>
+<h2 id="Summary">概述</h2>
 
 <p><code><strong>Math.atan2(</strong></code><code><strong>)</strong></code> 返回从原点(0,0)到(x,y)点的线段与x轴正方向之间的平面角度(弧度值)，也就是Math.atan2(y,x)</p>
 
-<h2 id="Syntax" name="Syntax">语法</h2>
+<h2 id="Syntax">语法</h2>
 
 <pre class="syntaxbox">Math.atan2(<em>y</em>, <em>x</em>) </pre>
 
-<h2 id="Parameters" name="Parameters">参数</h2>
+<h2 id="Parameters">参数</h2>
 
 <dl>
  <dt><code>y, x</code></dt>
  <dd>数值</dd>
 </dl>
 
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 
 <p><code>atan2</code> 方法返回一个 -pi 到 pi 之间的数值，表示点 (x, y) 对应的偏移角度。这是一个逆时针角度，以弧度为单位，正X轴和点 (x, y) 与原点连线 之间。注意此函数接受的参数：先传递 y 坐标，然后是 x 坐标。</p>
 
@@ -28,9 +28,9 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/atan2
 
 <p>由于 <code>atan2</code> 是 <code>Math</code> 的静态方法，所以应该像这样使用：<code>Math.atan2()</code>，而不是作为你创建的 <code>Math</code> 实例的方法。</p>
 
-<h2 id="Examples" name="Examples">示例</h2>
+<h2 id="Examples">示例</h2>
 
-<h3 id="Example_Using_Math.atan2" name="Example:_Using_Math.atan2">例子：使用 <code>Math.atan2</code></h3>
+<h3 id="Example_Using_Math.atan2">例子：使用 <code>Math.atan2</code></h3>
 
 <pre class="brush:js">Math.atan2(90, 15) // 1.4056476493802699
 Math.atan2(15, 90) // 0.16514867741462683
@@ -127,7 +127,7 @@ Math.atan2(15, 90) // 0.16514867741462683
 </table>
 </div>
 
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 
 <ul>
  <li>The {{jsxref("Global_Objects/Math", "Math")}} object it belongs to.</li>
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/cbrt/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/cbrt/index.html
index 22f37c402a..506e303660 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/cbrt/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/cbrt/index.html
@@ -5,15 +5,15 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/cbrt
 ---
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 
-<h2 id="Summary" name="Summary">概述</h2>
+<h2 id="Summary">概述</h2>
 
 <p><code><strong>Math.cbrt()</strong></code> 函数返回任意数字的立方根.</p>
 
-<h2 id="Syntax" name="Syntax">语法</h2>
+<h2 id="Syntax">语法</h2>
 
 <pre class="syntaxbox">Math.cbrt(<em>x</em>)</pre>
 
-<h3 id="Parameters" name="Parameters">参数</h3>
+<h3 id="Parameters">参数</h3>
 
 <dl>
  <dt><code>x</code></dt>
@@ -28,7 +28,7 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/cbrt
 
 
 
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 
 <p>该方法为Math的静态方法,因此请直接通过Math.cbrt()方式调用.</p>
 
@@ -36,7 +36,7 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/cbrt
 
 <p>cbrt 是 "cube root" 的缩写, 意思是立方根.</p>
 
-<h2 id="Examples" name="Examples">示例</h2>
+<h2 id="Examples">示例</h2>
 
 <h3 id="使用_Math.cbrt">使用 Math.cbrt()</h3>
 
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/clz32/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/clz32/index.html
index 6112c6e45e..20139dec2f 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/clz32/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/clz32/index.html
@@ -5,16 +5,16 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/clz32
 ---
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 
-<h2 id="Summary" name="Summary">概述</h2>
+<h2 id="Summary">概述</h2>
 
 <p><code><strong>Math.clz32() </strong></code>函数返回一个数字在转换成 32 无符号整形数字的二进制形式后, 开头的 0 的个数, 比如 <code>1000000</code> 转换成 32 位无符号整形数字的二进制形式后是 <code>00000000000011110100001001000000</code>, 开头的 0 的个数是 12 个, 则 <code>Math.clz32(1000000)</code> 返回 <code>12</code>.</p>
 
-<h2 id="Syntax" name="Syntax">语法</h2>
+<h2 id="Syntax">语法</h2>
 
 <pre class="syntaxbox"><code>Math.clz32 (x)
 </code></pre>
 
-<h3 id="Parameters" name="Parameters">参数</h3>
+<h3 id="Parameters">参数</h3>
 
 <dl>
  <dt>x</dt>
@@ -45,7 +45,7 @@ Math.clz32(true)             // 31
 Math.clz32(3.5)              // 30
 </pre>
 
-<h2 id="Compatibility" name="Compatibility">计算前导1的个数</h2>
+<h2 id="Compatibility">计算前导1的个数</h2>
 
 <p>目前javascript尚未提供<code>Math.clon</code>函数来计算前导1的个数（之所以叫“clon”而非“clo”，是因为“clo”与“clz”太过相似，特别对那些母语不是英语的人来说），但是你可以通过将一个数取反并将其作为<code>Math.clz32</code>的参数来实现clon函数。其中的原理非常简单，因为对1取反是0，反之亦然，所以用<code>Math.clz32</code>计算前导0的个数就变成计算前导1的个数。</p>
 
@@ -122,7 +122,7 @@ function ctron(integer){ // 计算尾随1个数
 var ctrz = countTrailsMethods.a;
 var ctron = countTrailsMethods.b;</pre>
 
-<h2 id="Compatibility" name="Compatibility">Polyfill</h2>
+<h2 id="Compatibility">Polyfill</h2>
 
 <p>这个polyfill效率最高。</p>
 
@@ -157,7 +157,7 @@ var ctron = countTrailsMethods.b;</pre>
 
 <p>{{Compat("javascript.builtins.Math.clz32")}}</p>
 
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 
 <ul>
  <li>{{jsxref("Math")}}</li>
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/cos/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/cos/index.html
index 482f2fa09a..d0741e46a4 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/cos/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/cos/index.html
@@ -5,22 +5,22 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/cos
 ---
 <div>
  {{JSRef("Global_Objects", "Math")}}</div>
-<h2 id="Summary" name="Summary">概述</h2>
+<h2 id="Summary">概述</h2>
 <p><code><strong>Math.cos()</strong></code> 函数返回一个数值的余弦值。</p>
-<h2 id="Syntax" name="Syntax">语法</h2>
+<h2 id="Syntax">语法</h2>
 <pre class="syntaxbox">Math.cos(<em>x</em>)</pre>
-<h3 id="Parameters" name="Parameters">参数</h3>
+<h3 id="Parameters">参数</h3>
 <dl>
  <dt>
   <code>x</code></dt>
  <dd>
   一个以弧度为单位的数值。</dd>
 </dl>
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 <p><code>cos</code> 方法返回一个 -1 到 1 之间的数值，表示角度（单位：弧度）的余弦值。</p>
 <p>由于 <code>cos</code> 是 <code>Math</code> 的静态方法，所以应该像这样使用：<code>Math.cos()</code>，而不是作为你创建的 <code>Math</code> 实例的方法。</p>
-<h2 id="Examples" name="Examples">示例</h2>
-<h3 id="Example:_Using_Math.cos" name="Example:_Using_Math.cos">例子：使用 <code>Math.cos</code></h3>
+<h2 id="Examples">示例</h2>
+<h3 id="Example:_Using_Math.cos">例子：使用 <code>Math.cos</code></h3>
 <pre class="brush:js">Math.cos(0);           // 1
 Math.cos(1);           // 0.5403023058681398
 
@@ -100,7 +100,7 @@ Math.cos(2 * Math.PI); // 1
   </tbody>
  </table>
 </div>
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 <ul>
  <li>The {{jsxref("Global_Objects/Math", "Math")}} object it belongs to.</li>
 </ul>
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/e/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/e/index.html
index 2a0afca6ab..adb71b9f29 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/e/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/e/index.html
@@ -5,15 +5,15 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/E
 ---
 <div>
  {{JSRef("Global_Objects", "Math")}}</div>
-<h2 id="Summary" name="Summary">概述</h2>
+<h2 id="Summary">概述</h2>
 <p><code><strong>Math.E</strong></code> 属性表示自然对数的底数（或称为基数），e，约等于 2.718。</p>
 <p><math display="block"><semantics><mrow><mstyle mathvariant="monospace"><mi>Math.E</mi></mstyle><mo>=</mo><mi>e</mi><mo>≈</mo><mn>2.718</mn></mrow><annotation encoding="TeX">\mathtt{\mi{Math.E}} = e \approx 2.718</annotation></semantics></math></p>
 <div>
  {{js_property_attributes(0,0,0)}}</div>
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 <p>由于 <code>E</code> 是 <code>Math</code> 对象的静态属性，所以应该像这样使用：<code>Math.E</code>，而不是作为你创建的 <code>Math</code> 实例对象的属性（<code>Math</code> 不是构造函数）。</p>
-<h2 id="Examples" name="Examples">示例</h2>
-<h3 id="Example:_Using_Math.E" name="Example:_Using_Math.E">例子：使用 <code>Math.E</code></h3>
+<h2 id="Examples">示例</h2>
+<h3 id="Example:_Using_Math.E">例子：使用 <code>Math.E</code></h3>
 <p>下面的函数返回 e：</p>
 <pre class="brush:js">function getNapier() {
    return Math.E
@@ -93,7 +93,7 @@ getNapier() // 2.718281828459045</pre>
   </tbody>
  </table>
 </div>
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 <ul>
  <li>The {{jsxref("Global_Objects/Math", "Math")}} object it belongs to.</li>
 </ul>
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/exp/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/exp/index.html
index 0da94f62c2..14f5af47c3 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/exp/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/exp/index.html
@@ -5,21 +5,21 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/exp
 ---
 <div>
  {{JSRef("Global_Objects", "Math")}}</div>
-<h2 id="Summary" name="Summary">概述</h2>
+<h2 id="Summary">概述</h2>
 <p><code><strong>Math.exp()</strong></code> 函数返回 <code>e<sup>x</sup></code>，<code>x</code> 表示参数，<code>e</code> 是<a href="/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Math/E">欧拉常数（Euler's constant）</a>，自然对数的底数。</p>
-<h2 id="Syntax" name="Syntax">语法</h2>
+<h2 id="Syntax">语法</h2>
 <pre class="syntaxbox"><code>Math.exp(<em>x</em>)</code></pre>
-<h3 id="Parameters" name="Parameters">参数</h3>
+<h3 id="Parameters">参数</h3>
 <dl>
  <dt>
   <code>x</code></dt>
  <dd>
   一个数值</dd>
 </dl>
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 <p>由于 <code>exp</code> 是 <code>Math</code> 的静态方法，所以应该像这样使用：<code>Math.exp()</code>，而不是作为你创建的 <code>Math</code> 实例的方法。</p>
-<h2 id="Examples" name="Examples">示例</h2>
-<h3 id="Example:_Using_Math.exp" name="Example:_Using_Math.exp">例子：使用 <code>Math.exp</code></h3>
+<h2 id="Examples">示例</h2>
+<h3 id="Example:_Using_Math.exp">例子：使用 <code>Math.exp</code></h3>
 <pre class="brush:js">Math.exp(-1); // 0.36787944117144233
 Math.exp(0);  // 1
 Math.exp(1);  // 2.718281828459045</pre>
@@ -96,7 +96,7 @@ Math.exp(1);  // 2.718281828459045</pre>
   </tbody>
  </table>
 </div>
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 <ul>
  <li>The {{jsxref("Global_Objects/Math", "Math")}} object it belongs to.</li>
  <li>{{jsxref("Math.E")}}</li>
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/expm1/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/expm1/index.html
index ff321fb664..0fd773ece9 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/expm1/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/expm1/index.html
@@ -5,28 +5,28 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/expm1
 ---
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 
-<h2 id="Summary" name="Summary">概述</h2>
+<h2 id="Summary">概述</h2>
 
 <p><code><strong>Math.expm1()</strong></code> 函数返回 <code>E<sup>x</sup> - 1</code>, 其中 <code>x</code> 是该函数的参数, <code>E</code> 是自然对数的底数 <code>2.718281828459045.</code></p>
 
-<h2 id="Syntax" name="Syntax">语法</h2>
+<h2 id="Syntax">语法</h2>
 
 <pre class="syntaxbox"><code>Math.expm1(<em>x</em>)</code></pre>
 
-<h3 id="Parameters" name="Parameters">参数</h3>
+<h3 id="Parameters">参数</h3>
 
 <dl>
  <dt><code>x</code></dt>
  <dd>任意数字.</dd>
 </dl>
 
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 
 <p><code>参数 <code>x</code> 会被自动类型转换成 <code>number </code>类型.</code></p>
 
 <p><code>expm1 是 "exponent minus 1" 的缩写.</code></p>
 
-<h2 id="Examples" name="Examples">示例</h2>
+<h2 id="Examples">示例</h2>
 
 <pre class="brush:js">Math.expm1(1)     // 1.7182818284590453
 Math.expm1(-38)   // -1
@@ -112,7 +112,7 @@ Math.expm1("foo") // NaN
 </table>
 </div>
 
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 
 <ul>
  <li>{{jsxref("Global_Objects/Math", "Math")}} 对象.</li>
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/floor/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/floor/index.html
index 84f4f3b8b6..3f9deb45c0 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/floor/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/floor/index.html
@@ -15,11 +15,11 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/floor
 <p>Note:  可以理解 <code><strong>Math.floor()</strong></code>为向下取整</p>
 </div>
 
-<h2 id="Syntax" name="Syntax">语法</h2>
+<h2 id="Syntax">语法</h2>
 
 <pre class="syntaxbox"><code>Math.floor(<em>x</em>) </code></pre>
 
-<h3 id="Parameters" name="Parameters">参数</h3>
+<h3 id="Parameters">参数</h3>
 
 <dl>
  <dt><code>x</code></dt>
@@ -31,13 +31,13 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/floor
  </dt>
 </dl>
 
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 
 <p>由于 <code>floor</code> 是 <code>Math</code> 的一个静态方法，你总是应该像这样使用它 <code>Math.floor()</code>，而不是作为你创建的一个Math对象的一种方法（Math不是一个构造函数）。</p>
 
-<h2 id="Examples" name="Examples">示例</h2>
+<h2 id="Examples">示例</h2>
 
-<h3 id="Example_Using_Math.floor" name="Example:_Using_Math.floor">例子：使用 <code>Math.floor</code></h3>
+<h3 id="Example_Using_Math.floor">例子：使用 <code>Math.floor</code></h3>
 
 <pre class="brush:js">Math.floor( 45.95);
 // 45
@@ -52,7 +52,7 @@ Math.floor(-45.95);
 
 </pre>
 
-<h3 id="Example_Decimal_adjustment" name="Example:_Decimal_adjustment">例子：十进制调整</h3>
+<h3 id="Example_Decimal_adjustment">例子：十进制调整</h3>
 
 <pre class="brush:js">// Closure
 (function(){
@@ -210,7 +210,7 @@ Math.ceil10(-59, 1); // -50
 </table>
 </div>
 
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 
 <ul>
  <li>The {{jsxref("Global_Objects/Math", "Math")}} object it belongs to.</li>
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/fround/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/fround/index.html
index f5118b4a22..b4790b6448 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/fround/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/fround/index.html
@@ -5,26 +5,26 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/fround
 ---
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 
-<h2 id="Summary" name="Summary">概述</h2>
+<h2 id="Summary">概述</h2>
 
 <p><strong><code>Math.fround()</code></strong> 可以将任意的数字转换为离它最近的<a class="external" href="https://en.wikipedia.org/wiki/Single-precision_floating-point_format" title="link to the wikipedia page on single-precision floating-point format">单精度浮点数</a>形式的数字。</p>
 
-<h2 id="Syntax" name="Syntax">语法</h2>
+<h2 id="Syntax">语法</h2>
 
 <pre class="brush: js"><code>Math.fround(<var>doubleFloat</var>)</code></pre>
 
-<h3 id="Parameters" name="Parameters">参数</h3>
+<h3 id="Parameters">参数</h3>
 
 <dl>
  <dt><code>doubleFloat</code></dt>
  <dd>一个 {{jsxref("Number")}}。若参数为非数字类型，则会被转投成数字。无法转换时，设置成{{jsxref("NaN")}}。</dd>
 </dl>
 
-<h3 id="Parameters" name="Parameters">返回值</h3>
+<h3 id="Parameters">返回值</h3>
 
 <p>指定数字最接近的<a href="https://en.wikipedia.org/wiki/Single-precision_floating-point_format">32位单精度</a>浮点数表示。</p>
 
-<h2 id="Examples" name="Examples">描述</h2>
+<h2 id="Examples">描述</h2>
 
 <p>JavaScript 内部使用64位的双浮点数字，支持很高的精度。但是，有时你需要用32位浮点数字，比如你从一个{{jsxref("Float32Array")}} 读取值时。这时会产生混乱：检查一个64位浮点数和一个32位浮点数是否相等会失败，即使二个数字几乎一模一样。</p>
 
@@ -32,7 +32,7 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/fround
 
 <p>因为<code>fround()</code> 是<code>Math</code> 的静态方法，你必须通过 <code>Math.fround()</code> 来使用，而不是调用你创建的<code>Math</code> 对象的一个实例方法（<code>Math</code>不是一个构造函数）。</p>
 
-<h2 id="Examples" name="Examples">示例</h2>
+<h2 id="Examples">示例</h2>
 
 <h3 id="使用_Math.fround()">使用 Math.fround()</h3>
 
@@ -70,7 +70,7 @@ function equal(v1, v2) {
 equal(0.1 + 0.2, 0.3);   //true
 </pre>
 
-<h2 id="Polyfill" name="Polyfill">Polyfill</h2>
+<h2 id="Polyfill">Polyfill</h2>
 
 <p>下面的函数可以模拟这个 API，前提是浏览器必须已经支持 {{jsxref("Float32Array")}}：</p>
 
@@ -80,7 +80,7 @@ equal(0.1 + 0.2, 0.3);   //true
   };
 })(new Float32Array(1));</pre>
 
-<h2 id="Specifications" name="Specifications">规范</h2>
+<h2 id="Specifications">规范</h2>
 
 <table class="standard-table">
  <tbody>
@@ -95,7 +95,7 @@ equal(0.1 + 0.2, 0.3);   //true
  </tbody>
 </table>
 
-<h2 id="Browser_compatibility" name="Browser_compatibility">浏览器兼容性</h2>
+<h2 id="Browser_compatibility">浏览器兼容性</h2>
 
 <div>{{CompatibilityTable}}</div>
 
@@ -147,7 +147,7 @@ equal(0.1 + 0.2, 0.3);   //true
 </table>
 </div>
 
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 
 <ul>
  <li>{{jsxref("Math.round()")}}</li>
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/hypot/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/hypot/index.html
index dc368fddb6..844e2b0895 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/hypot/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/hypot/index.html
@@ -17,11 +17,11 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/hypot
 
 
 
-<h2 id="Syntax" name="Syntax">语法</h2>
+<h2 id="Syntax">语法</h2>
 
 <pre class="syntaxbox"><code>Math.hypot([<em>value1</em>[,<em>value2</em>, ...]]) </code></pre>
 
-<h3 id="Parameters" name="Parameters">参数</h3>
+<h3 id="Parameters">参数</h3>
 
 <dl>
  <dt><code>value1, value2, ...</code></dt>
@@ -32,7 +32,7 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/hypot
 
 <p>将所提供的参数求平方和后开平方根。如果有参数不能转换为数字，则返回 {{jsxref("NaN")}}。</p>
 
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 
 <p>计算直角三角形的斜边，或复数的幅值时可以使用函数 <code>Math.sqrt(v1*v1 + v2*v2)</code> ，其中 v1 和 v2 是三角形的两个直角边或复数的实部和虚部。如果想计算更多维度，那么只需要在后面添加更多的数的平方就可以了，比如 <code>Math.sqrt(v1*v1 + v2*v2 + v3*v3 + v4*v4)</code>。</p>
 
@@ -48,7 +48,7 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/hypot
 
 <p>如果只传入一个参数,  <code>Math.hypot(x)</code> 等同于 <code>Math.abs(x)</code>.</p>
 
-<h2 id="Examples" name="Examples">示例</h2>
+<h2 id="Examples">示例</h2>
 
 <h3 id="Using_Math.hypot">Using <code>Math.hypot()</code></h3>
 
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/imul/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/imul/index.html
index a3daf8f633..42c9565c28 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/imul/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/imul/index.html
@@ -15,7 +15,7 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/imul
 
 <pre class="syntaxbox"><code>var<em> product</em> = Math.imul(a, b)</code></pre>
 
-<h3 id="Parameters" name="Parameters">参数</h3>
+<h3 id="Parameters">参数</h3>
 
 <dl>
  <dt><code>a</code></dt>
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/ln10/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/ln10/index.html
index a4eba0051e..763340918a 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/ln10/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/ln10/index.html
@@ -5,15 +5,15 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/LN10
 ---
 <div>
  {{JSRef("Global_Objects", "Math")}}</div>
-<h2 id="Summary" name="Summary">概述</h2>
+<h2 id="Summary">概述</h2>
 <p><code><strong>Math.LN10</strong></code> 属性表示 10 的自然对数，约为 2.302：</p>
 <p><math display="block"><semantics><mrow><mstyle mathvariant="monospace"><mi>Math.LN10</mi></mstyle><mo>=</mo><mo lspace="0em" rspace="0em">ln</mo><mo stretchy="false">(</mo><mn>10</mn><mo stretchy="false">)</mo><mo>≈</mo><mn>2.302</mn></mrow><annotation encoding="TeX">\mathtt{\mi{Math.LN10}} = \ln(10) \approx 2.302</annotation></semantics></math></p>
 <div>
  {{js_property_attributes(0,0,0)}}</div>
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 <p>由于 <code>LN10</code> 是 <code>Math</code> 的静态属性，所以应该像这样使用：<code>Math.LN10</code>，而不是作为你创建的 <code>Math</code> 实例的属性（<code>Math</code> 不是构造函数）。</p>
-<h2 id="Examples" name="Examples">示例</h2>
-<h3 id="Example:_Using_Math.LN10" name="Example:_Using_Math.LN10">例子：使用 <code>Math.LN10</code></h3>
+<h2 id="Examples">示例</h2>
+<h3 id="Example:_Using_Math.LN10">例子：使用 <code>Math.LN10</code></h3>
 <p>下面的函数返回 10 的自然对数：</p>
 <pre class="brush:js">function getNatLog10() {
    return Math.LN10
@@ -93,7 +93,7 @@ getNatLog10() // 2.302585092994046</pre>
   </tbody>
  </table>
 </div>
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 <ul>
  <li>The {{jsxref("Global_Objects/Math", "Math")}} object it belongs to.</li>
 </ul>
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/ln2/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/ln2/index.html
index b8d7dd049e..f1d8fd9c23 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/ln2/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/ln2/index.html
@@ -5,15 +5,15 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/LN2
 ---
 <div>
  {{JSRef("Global_Objects", "Math")}}</div>
-<h2 id="Summary" name="Summary">概述</h2>
+<h2 id="Summary">概述</h2>
 <p><code><strong>Math.LN2</strong></code> 属性表示 2 的自然对数，约为 0.693：</p>
 <p><math display="block"><semantics><mrow><mstyle mathvariant="monospace"><mi>Math.LN2</mi></mstyle><mo>=</mo><mo lspace="0em" rspace="0em">ln</mo><mo stretchy="false">(</mo><mn>2</mn><mo stretchy="false">)</mo><mo>≈</mo><mn>0.693</mn></mrow><annotation encoding="TeX">\mathtt{\mi{Math.LN2}} = \ln(2) \approx 0.693</annotation></semantics></math></p>
 <div>
  {{js_property_attributes(0,0,0)}}</div>
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 <p>由于 <code>LN2</code> 是 <code>Math</code> 的静态属性，所以应该像这样使用：<code>Math.LN2</code>，而不是作为你创建的 <code>Math</code> 实例的属性（<code>Math</code> 不是构造函数）。</p>
-<h2 id="Examples" name="Examples">示例</h2>
-<h3 id="Example:_Using_Math.LN2" name="Example:_Using_Math.LN2">例子：使用 <code>Math.LN2</code></h3>
+<h2 id="Examples">示例</h2>
+<h3 id="Example:_Using_Math.LN2">例子：使用 <code>Math.LN2</code></h3>
 <p>下面的函数返回 2 的自然对数：</p>
 <pre class="brush:js">function getNatLog2() {
    return Math.LN2
@@ -93,7 +93,7 @@ getNatLog2() // 0.6931471805599453</pre>
   </tbody>
  </table>
 </div>
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 <ul>
  <li>The {{jsxref("Global_Objects/Math", "Math")}} object it belongs to.</li>
 </ul>
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/log/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/log/index.html
index 5be95016a8..fc1a647ccc 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/log/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/log/index.html
@@ -5,24 +5,24 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/log
 ---
 <p>{{JSRef("Global_Objects", "Math")}}</p>
 
-<h2 name="Summary">概述</h2>
+<h2>概述</h2>
 
 <p><code><strong>Math.log()</strong></code> 函数返回一个数的自然对数，即：</p>
 
 <p><math><semantics><mrow><mo>∀</mo><mi>x</mi><mo>&gt;</mo><mn>0</mn><mo>,</mo><mstyle mathvariant="monospace"><mrow><mo lspace="0em" rspace="thinmathspace">Math.log</mo><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo></mrow></mstyle><mo>=</mo><mo lspace="0em" rspace="0em">ln</mo><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo><mo>=</mo><mtext>the unique</mtext><mspace width="thickmathspace"></mspace><mi>y</mi><mspace width="thickmathspace"></mspace><mtext>such that</mtext><mspace width="thickmathspace"></mspace><msup><mi>e</mi><mi>y</mi></msup><mo>=</mo><mi>x</mi></mrow><annotation encoding="TeX">\forall x &gt; 0, \mathtt{\operatorname{Math.log}(x)} = \ln(x) = \text{the unique} \; y \; \text{such that} \; e^y = x</annotation></semantics></math></p>
 
-<h2 id="Syntax" name="Syntax">语法</h2>
+<h2 id="Syntax">语法</h2>
 
 <pre class="syntaxbox"><code>Math.log(<em>x</em>)</code></pre>
 
-<h3 id="Parameters" name="Parameters">参数</h3>
+<h3 id="Parameters">参数</h3>
 
 <dl>
  <dt><code>x</code></dt>
  <dd>一个数字.</dd>
 </dl>
 
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 
 <p>如果指定的 <code>number</code> 为负数，则返回值为 <code>NaN</code>。</p>
 
@@ -30,7 +30,7 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/log
 
 <h2 id="示例">示例</h2>
 
-<h3 id="Example:_Using_Math.log" name="Example:_Using_Math.log">例子1:使用<code>Math.log</code></h3>
+<h3 id="Example:_Using_Math.log">例子1:使用<code>Math.log</code></h3>
 
 <p>下面的函数返回指定变量的自然对数：</p>
 
@@ -128,7 +128,7 @@ Math.log(10); // 2.302585092994046</pre>
 </table>
 </div>
 
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 
 <p></p>
 
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/log10/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/log10/index.html
index 80dc91b6ca..1f6d67437a 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/log10/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/log10/index.html
@@ -7,26 +7,26 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/log10
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 </div>
 
-<h2 id="Summary" name="Summary">概述</h2>
+<h2 id="Summary">概述</h2>
 
 <p><code><strong>Math.log10()</strong></code> 函数返回一个数字以 10 为底的对数.</p>
 
-<h2 id="Syntax" name="Syntax">语法</h2>
+<h2 id="Syntax">语法</h2>
 
 <pre class="syntaxbox"><code>Math.log10(<em>x</em>)</code></pre>
 
-<h3 id="Parameters" name="Parameters">参数</h3>
+<h3 id="Parameters">参数</h3>
 
 <dl>
  <dt><code>x</code></dt>
  <dd>任意数字.</dd>
 </dl>
 
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 
 <p>如果传入的参数小于 0, 则返回 NaN.</p>
 
-<h2 id="Examples" name="Examples">示例</h2>
+<h2 id="Examples">示例</h2>
 
 <pre class="brush:js">Math.log10(10)   // 1
 Math.log10(100)  // 2
@@ -106,7 +106,7 @@ Math.log10("foo")// NaN
 </table>
 </div>
 
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 
 <ul>
  <li>{{jsxref("Global_Objects/Math", "Math")}} 对象.</li>
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/log10e/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/log10e/index.html
index 1e5f1ae035..43e10e9ed5 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/log10e/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/log10e/index.html
@@ -5,15 +5,15 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/LOG10E
 ---
 <div>
  {{JSRef("Global_Objects", "Math")}}</div>
-<h2 id="Summary" name="Summary">概述</h2>
+<h2 id="Summary">概述</h2>
 <p><code><strong>Math.LOG10E</strong></code> 属性表示以 10 为底数，e 的对数，约为 0.434：</p>
 <p><math display="block"><semantics><mrow><mstyle mathvariant="monospace"><mi>Math.LOG10E</mi></mstyle><mo>=</mo><msub><mo lspace="0em" rspace="0em">log</mo><mn>10</mn></msub><mo stretchy="false">(</mo><mi>e</mi><mo stretchy="false">)</mo><mo>≈</mo><mn>0.434</mn></mrow><annotation encoding="TeX">\mathtt{\mi{Math.LOG10E}} = \log_10(e) \approx 0.434</annotation></semantics></math></p>
 <div>
  {{js_property_attributes(0,0,0)}}</div>
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 <p>由于 <code>LOG10E</code> 是 <code>Math</code> 的静态属性，所以应该像这样使用：<code>Math.LOG10E</code>，而不是作为你创建的 <code>Math</code> 实例的属性（<code>Math</code> 不是一个构造函数）。</p>
-<h2 id="Examples" name="Examples">示例</h2>
-<h3 id="Example:_Using_Math.LOG10E" name="Example:_Using_Math.LOG10E">例子：使用 <code>Math.LOG10E</code></h3>
+<h2 id="Examples">示例</h2>
+<h3 id="Example:_Using_Math.LOG10E">例子：使用 <code>Math.LOG10E</code></h3>
 <p>下面的函数返回以 10为底数，E的对数：</p>
 <pre class="brush:js">function getLog10e() {
    return Math.LOG10E
@@ -93,7 +93,7 @@ getLog10e() // 0.4342944819032518</pre>
   </tbody>
  </table>
 </div>
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 <ul>
  <li>The {{jsxref("Global_Objects/Math", "Math")}} object it belongs to.</li>
 </ul>
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/log1p/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/log1p/index.html
index e80f580580..139283bc81 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/log1p/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/log1p/index.html
@@ -7,22 +7,22 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/log1p
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 </div>
 
-<h2 id="Summary" name="Summary">概述</h2>
+<h2 id="Summary">概述</h2>
 
 <p><code><strong>Math.log1p()</strong></code> 函数返回一个数字加1后的自然对数 (底为 <code>E</code>), 既<code>log(x+1)</code>.</p>
 
-<h2 id="Syntax" name="Syntax">语法</h2>
+<h2 id="Syntax">语法</h2>
 
 <pre class="syntaxbox"><code>Math.log1p(<em>x</em>)</code></pre>
 
-<h3 id="Parameters" name="Parameters">参数</h3>
+<h3 id="Parameters">参数</h3>
 
 <dl>
  <dt><code>x</code></dt>
  <dd>任意数字.</dd>
 </dl>
 
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 
 <p>如果参数的值小于<code> -1</code>, 则返回 <code>NaN.</code></p>
 
@@ -109,7 +109,7 @@ Math.log1p("foo")     // NaN
 </table>
 </div>
 
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 
 <ul>
  <li>{{jsxref("Global_Objects/Math", "Math")}} 对象.</li>
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/log2/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/log2/index.html
index 78f1c43b93..1811e1b183 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/log2/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/log2/index.html
@@ -7,26 +7,26 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/log2
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 </div>
 
-<h2 id="Summary" name="Summary">概述</h2>
+<h2 id="Summary">概述</h2>
 
 <p><code><strong>Math.log2()</strong></code> 函数返回一个数字以 2 为底的对数.</p>
 
-<h2 id="Syntax" name="Syntax">语法</h2>
+<h2 id="Syntax">语法</h2>
 
 <pre class="syntaxbox"><code>Math.log2(<em>x</em>)</code></pre>
 
-<h3 id="Parameters" name="Parameters">参数</h3>
+<h3 id="Parameters">参数</h3>
 
 <dl>
  <dt><code>x</code></dt>
  <dd>任意数字.</dd>
 </dl>
 
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 
 <p>如果传入的参数小于 0, 则返回 <code>NaN</code>.</p>
 
-<h2 id="Examples" name="Examples">示例</h2>
+<h2 id="Examples">示例</h2>
 
 <pre class="brush:js">Math.log2(2)     // 1
 Math.log2(1024)  // 10
@@ -106,7 +106,7 @@ Math.log2("foo") // NaN
 </table>
 </div>
 
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 
 <ul>
  <li>{{jsxref("Global_Objects/Math", "Math")}} 对象.</li>
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/log2e/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/log2e/index.html
index 9ede75f09c..79f6800f6e 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/log2e/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/log2e/index.html
@@ -5,15 +5,15 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/LOG2E
 ---
 <div>
  {{JSRef("Global_Objects", "Math")}}</div>
-<h2 id="Summary" name="Summary">概述</h2>
+<h2 id="Summary">概述</h2>
 <p><code><strong>Math.LOG2E</strong></code> 属性表示以 2 为底数，e 的对数，约为 1.442：</p>
 <p><math display="block"><semantics><mrow><mstyle mathvariant="monospace"><mi>Math.LOG2E</mi></mstyle><mo>=</mo><msub><mo lspace="0em" rspace="0em">log</mo><mn>2</mn></msub><mo stretchy="false">(</mo><mi>e</mi><mo stretchy="false">)</mo><mo>≈</mo><mn>1.442</mn></mrow><annotation encoding="TeX">\mathtt{\mi{Math.LOG2E}} = \log_2(e) \approx 1.442</annotation></semantics></math></p>
 <div>
  {{js_property_attributes(0,0,0)}}</div>
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 <p>由于 <code>LOG2E</code> 是 <code>Math</code> 的静态属性，所以应该像这样使用：<code>Math.LOG2E</code>，而不是作为你创建的 <code>Math</code> 对象的属性（<code>Math</code> 不是一个构造函数）。</p>
-<h2 id="Examples" name="Examples">示例</h2>
-<h3 id="Example:_Using_Math.LOG2E" name="Example:_Using_Math.LOG2E">例子：使用 <code>Math.LOG2E</code></h3>
+<h2 id="Examples">示例</h2>
+<h3 id="Example:_Using_Math.LOG2E">例子：使用 <code>Math.LOG2E</code></h3>
 <p>下面的函数返回以 2 为底数，E 的对数：</p>
 <pre class="brush:js">function getLog2e() {
    return Math.LOG2E
@@ -93,7 +93,7 @@ getLog2e() // 1.4426950408889634</pre>
   </tbody>
  </table>
 </div>
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 <ul>
  <li>The {{jsxref("Global_Objects/Math", "Math")}} object it belongs to.</li>
 </ul>
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/max/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/max/index.html
index 593776318e..73e3914dce 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/max/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/max/index.html
@@ -12,11 +12,11 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/max
 
 <p>{{EmbedInteractiveExample("pages/js/math-max.html")}}</p>
 
-<h2 id="Syntax" name="Syntax">语法</h2>
+<h2 id="Syntax">语法</h2>
 
 <pre class="syntaxbox"><code>Math.max(<em>value1</em>[,<em>value2</em>, ...]) </code></pre>
 
-<h3 id="Parameters" name="Parameters">参数</h3>
+<h3 id="Parameters">参数</h3>
 
 <dl>
  <dt><code>value1, value2, ...</code></dt>
@@ -27,7 +27,7 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/max
 
 <p>返回给定的一组数字中的最大值。如果给定的参数中至少有一个参数无法被转换成数字，则会返回 {{jsxref("NaN")}}。</p>
 
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 
 <p>由于 <code>max</code> 是 <code>Math</code> 的静态方法，所以应该像这样使用：<code>Math.max()</code>，而不是创建的 <code>Math</code> 实例的方法（<code>Math</code> 不是构造函数）。</p>
 
@@ -35,9 +35,9 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/max
 
 <p>如果有任一参数不能被转换为数值，则结果为 {{jsxref("NaN")}}。</p>
 
-<h2 id="Examples" name="Examples">示例</h2>
+<h2 id="Examples">示例</h2>
 
-<h3 id="Example_Using_Math.max" name="Example:_Using_Math.max">使用 <code>Math.max()</code></h3>
+<h3 id="Example_Using_Math.max">使用 <code>Math.max()</code></h3>
 
 <pre>Math.max(10, 20);   //  20
 Math.max(-10, -20); // -10
@@ -92,7 +92,7 @@ var max = Math.max(...arr);
 
 <p>{{Compat("javascript.builtins.Math.max")}}</p>
 
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 
 <ul>
  <li>{{jsxref("Math.min()")}}</li>
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/min/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/min/index.html
index a5a5a6defc..068ffd7bd6 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/min/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/min/index.html
@@ -13,11 +13,11 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/min
 
 <p><code><strong>Math.min()</strong></code> 返回零个或更多个数值的最小值。</p>
 
-<h2 id="Syntax" name="Syntax">语法</h2>
+<h2 id="Syntax">语法</h2>
 
 <pre class="syntaxbox"><code>Math.min([<em>value1</em>[,<em>value2</em>, ...]]) </code></pre>
 
-<h3 id="Parameters" name="Parameters">参数</h3>
+<h3 id="Parameters">参数</h3>
 
 <dl>
  <dt><code>value1, value2, ...</code></dt>
@@ -28,7 +28,7 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/min
 
 <p>给定数值中最小的数。如果任一参数不能转换为数值，则返回{{jsxref("NaN")}}。</p>
 
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 
 <p>由于 <code>min</code> 是 <code>Math</code> 的静态方法，所以应该像这样使用：<code>Math.min()</code>，而不是作为你创建的 <code>Math</code> 实例的方法（Math 不是构造函数）。</p>
 
@@ -36,9 +36,9 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/min
 
 <p>如果有任一参数不能被转换为数值，结果为 {{jsxref("NaN")}}。</p>
 
-<h2 id="Examples" name="Examples">示例</h2>
+<h2 id="Examples">示例</h2>
 
-<h3 id="Example:_Using_Math.min" name="Example:_Using_Math.min">使用 <code>Math.min()</code></h3>
+<h3 id="Example:_Using_Math.min">使用 <code>Math.min()</code></h3>
 
 <p>下例找出 x 和 y 的最小值，并把它赋值给 z：</p>
 
@@ -46,7 +46,7 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/min
 var z = Math.min(x, y);
 </pre>
 
-<h3 id="Example.3A_Clipping_a_value_with_Math.min" name="Example.3A_Clipping_a_value_with_Math.min">使用 <code>Math.min()</code> 裁剪值（Clipping a value）</h3>
+<h3 id="Example.3A_Clipping_a_value_with_Math.min">使用 <code>Math.min()</code> 裁剪值（Clipping a value）</h3>
 
 <p><code>Math.min</code> 经常用于裁剪一个值，以便使其总是小于或等于某个边界值。例如：</p>
 
@@ -148,7 +148,7 @@ if (x &gt; boundary) {
 </table>
 </div>
 
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 
 <ul>
  <li>{{jsxref("Math.max()")}}</li>
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/pi/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/pi/index.html
index efc463d5b7..3fc466cb3b 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/pi/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/pi/index.html
@@ -5,7 +5,7 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/PI
 ---
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 
-<h2 id="Summary" name="Summary">概述</h2>
+<h2 id="Summary">概述</h2>
 
 <p><code><strong>Math.PI</strong></code> 表示一个圆的周长与直径的比例，约为 3.14159：</p>
 
@@ -13,13 +13,13 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/PI
 
 <div>{{js_property_attributes(0,0,0)}}</div>
 
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 
 <p>由于 <code>PI</code> 是 <code>Math</code> 的静态属性，所以应该像这样使用：<code>Math.PI</code>，而不是作为你创建的 <code>Math</code> 实例的属性（<code>Math</code> 不是构造函数）。</p>
 
-<h2 id="Examples" name="Examples">示例</h2>
+<h2 id="Examples">示例</h2>
 
-<h3 id="Example:_Using_PI" name="Example:_Using_PI">使用 <code>Math.PI</code></h3>
+<h3 id="Example:_Using_PI">使用 <code>Math.PI</code></h3>
 
 <p>下面的函数使用 Math.PI 计算给定半径的圆周长：</p>
 
@@ -108,7 +108,7 @@ calculateCircumference(1);  // 6.283185307179586</pre>
 </table>
 </div>
 
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 
 <ul>
  <li>The {{jsxref("Global_Objects/Math", "Math")}} object it belongs to.</li>
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/pow/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/pow/index.html
index 9138f6d635..7e9b8ba09e 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/pow/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/pow/index.html
@@ -9,11 +9,11 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/pow
 
 <p>{{EmbedInteractiveExample("pages/js/math-pow.html")}}</p>
 
-<h2 id="Syntax" name="Syntax">语法</h2>
+<h2 id="Syntax">语法</h2>
 
 <pre class="syntaxbox"><code>Math.pow(<em>base</em>, <em>exponent</em>) </code></pre>
 
-<h3 id="Parameters" name="Parameters">参数</h3>
+<h3 id="Parameters">参数</h3>
 
 <dl>
  <dt><code>base</code></dt>
@@ -22,13 +22,13 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/pow
  <dd>指数</dd>
 </dl>
 
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 
 <p>由于 <code>pow</code> 是 <code>Math</code> 的静态方法，所以应该像这样使用：<code>Math.pow()</code>，而不是作为你创建的 <code>Math</code> 对象的方法。</p>
 
-<h2 id="Examples" name="Examples">示例</h2>
+<h2 id="Examples">示例</h2>
 
-<h3 id="Example_Using_Math.pow" name="Example:_Using_Math.pow">使用 <code>Math.pow</code></h3>
+<h3 id="Example_Using_Math.pow">使用 <code>Math.pow</code></h3>
 
 <pre class="brush:js">function raisePower(x,y) {
    return Math.pow(x,y)
@@ -67,7 +67,7 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/pow
 
 <p>{{Compat("javascript.builtins.Math.pow")}}</p>
 
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 
 <ul>
  <li>{{jsxref("Math.cbrt()")}}</li>
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/random/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/random/index.html
index 04602b2699..6924bb32c5 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/random/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/random/index.html
@@ -19,15 +19,15 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/random
 <p><code>Math.random()</code> <em>不能</em>提供像密码一样安全的随机数字。不要使用它们来处理有关安全的事情。使用Web Crypto API 来代替, 和更精确的{{domxref("RandomSource.getRandomValues()", "window.crypto.getRandomValues()")}} 方法.</p>
 </div>
 
-<h2 id="Syntax" name="Syntax">语法</h2>
+<h2 id="Syntax">语法</h2>
 
 <pre class="syntaxbox"><code>Math.random()</code></pre>
 
-<h3 id="Parameters" name="Parameters">返回值</h3>
+<h3 id="Parameters">返回值</h3>
 
 <p>一个浮点型伪随机数字，在<code>0</code>（包括0）和<code>1</code>（不包括）之间。</p>
 
-<h2 id="Examples" name="Examples">示例</h2>
+<h2 id="Examples">示例</h2>
 
 <p>请注意, 由于 JavaScript 中的数字是 IEEE 754 浮点数字，具有最近舍入（ round-to-nearest-even）的行为, 因此以下函数的范围 (不包括<code>Math.random()</code> 本身) 并不准确。如果选择了非常大的边界 (2<sup>53</sup> 或更高), 在极罕见的情况下会计算通常-排除（usually-excluded）的上界。（注：round-to-nearest-even采用最近舍入的去偶数舍入的方式，对.5的舍入上，采用取偶数的方式）</p>
 
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/round/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/round/index.html
index 409b9dbaa1..8cc263a27d 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/round/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/round/index.html
@@ -10,11 +10,11 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/round
 
 <p><code><strong>Math.round()</strong></code> 函数返回一个数字四舍五入后最接近的整数。</p>
 
-<h2 id="Syntax" name="Syntax">语法</h2>
+<h2 id="Syntax">语法</h2>
 
 <pre class="syntaxbox"><code>Math.round(<em>x</em>) </code></pre>
 
-<h3 id="Parameters" name="Parameters">参数</h3>
+<h3 id="Parameters">参数</h3>
 
 <dl>
  <dt><code>x</code></dt>
@@ -26,13 +26,13 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/round
  </dt>
 </dl>
 
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 
 <p>如果参数的小数部分大于 0.5，则舍入到相邻的绝对值更大的整数。 如果参数的小数部分小于 0.5，则舍入到相邻的绝对值更小的整数。如果参数的小数部分恰好等于0.5，则舍入到相邻的在正无穷（+∞）方向上的整数。<strong>注意，与很多其他语言中的<code>round()函数</code>不同，<code>Math.round()并不总是舍入到远离0的方向（尤其是在负数的小数部分恰好等于0.5的情况下）。</code></strong></p>
 
 <p>因为 <code>round()</code> 是 <code>Math</code> 的静态方法，你应该直接使用 <code>Math.round()</code>，而不是作为你创建的 <code>Math</code> 对象的一个实例方法来使用（<code>Math</code>没有构造函数）。</p>
 
-<h2 id="Examples" name="Examples">示例</h2>
+<h2 id="Examples">示例</h2>
 
 <pre class="brush:js">x = Math.round(20.49);   //20
 x = Math.round(20.5);    //21
@@ -40,7 +40,7 @@ x = Math.round(-20.5);   //-20
 x = Math.round(-20.51);  //-21
 </pre>
 
-<h3 id="Example:_Decimal_rounding" name="Example:_Decimal_rounding">小数舍入</h3>
+<h3 id="Example:_Decimal_rounding">小数舍入</h3>
 
 <pre class="brush: js">// 闭包
 (function(){
@@ -203,7 +203,7 @@ round(1.005, 2);    //1.01
 </table>
 </div>
 
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 
 <p></p>
 
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/sign/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/sign/index.html
index 590089e3c1..3501c97fd8 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/sign/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/sign/index.html
@@ -13,18 +13,18 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/sign
 
 <p><strong><code>Math.sign()</code></strong> 函数返回一个数字的符号, 指示数字是正数，负数还是零。</p>
 
-<h2 id="Syntax" name="Syntax">语法</h2>
+<h2 id="Syntax">语法</h2>
 
 <pre class="syntaxbox"><code>Math.sign(<em>x</em>);</code></pre>
 
-<h3 id="Parameters" name="Parameters">参数</h3>
+<h3 id="Parameters">参数</h3>
 
 <dl>
  <dt><code>x</code></dt>
  <dd>任意数字.</dd>
 </dl>
 
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 
 <p>因为 <code>sign </code>是 <code>Math </code>的一个静态方法，所以你应该使用 Math.sign() ，而不是作为你创建的一个Math对象的一种方法 （Math不是一个构造函数）。</p>
 
@@ -34,7 +34,7 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/sign
 
 <p>传入该函数的参数会被<strong>隐式转换</strong>成数字类型。</p>
 
-<h2 id="Examples" name="Examples">示例</h2>
+<h2 id="Examples">示例</h2>
 
 <h3 id="使用Math.sign()">使用Math.sign()</h3>
 
@@ -48,7 +48,7 @@ Math.sign("foo"); // NaN
 Math.sign();      // NaN
 </pre>
 
-<h2 id="Compatibility" name="Compatibility">Polyfill</h2>
+<h2 id="Compatibility">Polyfill</h2>
 
 <pre class="brush: js  language-js">function sign(x) {
     x = +x ;// convert to a number
@@ -145,7 +145,7 @@ Math.sign();      // NaN
 </table>
 </div>
 
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 
 <ul>
  <li>{{jsxref("Global_Objects/Math", "Math")}} 对象</li>
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/sin/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/sin/index.html
index fffb0dc1a1..866091c8b8 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/sin/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/sin/index.html
@@ -5,30 +5,30 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/sin
 ---
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 
-<h2 id="Summary" name="Summary">概述</h2>
+<h2 id="Summary">概述</h2>
 
 <p><code><strong>Math.sin()</strong></code> 函数返回一个数值的正弦值。</p>
 
-<h2 id="Syntax" name="Syntax">语法</h2>
+<h2 id="Syntax">语法</h2>
 
 <pre class="syntaxbox">Math.sin(<em>x</em>)</pre>
 
-<h3 id="Parameters" name="Parameters">参数</h3>
+<h3 id="Parameters">参数</h3>
 
 <dl>
  <dt><code>x</code></dt>
  <dd>一个数值（以弧度为单位）。</dd>
 </dl>
 
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 
 <p><code>sin</code> 方法返回一个 -1 到 1 之间的数值，表示给定角度（单位：弧度）的正弦值。</p>
 
 <p>由于 <code>sin</code> 是 <code>Math</code> 的静态方法，所以应该像这样使用：<code>Math.sin()</code>，而不是作为你创建的 <code>Math</code> 实例的方法。</p>
 
-<h2 id="Examples" name="Examples">示例</h2>
+<h2 id="Examples">示例</h2>
 
-<h3 id="Example_Using_Math.sin" name="Example:_Using_Math.sin">例子：使用 <code>Math.sin</code></h3>
+<h3 id="Example_Using_Math.sin">例子：使用 <code>Math.sin</code></h3>
 
 <pre class="brush:js">Math.sin(0);           // 0
 Math.sin(1);           // 0.8414709848078965
@@ -68,7 +68,7 @@ Math.sin(Math.PI / 2); // 1</pre>
 
 <div></div>
 
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 
 <ul>
  <li>{{jsxref("Math.acos()")}}</li>
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/sinh/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/sinh/index.html
index 7ba28b5f3d..899783ca75 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/sinh/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/sinh/index.html
@@ -5,28 +5,28 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/sinh
 ---
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 
-<h2 id="Summary" name="Summary">概述</h2>
+<h2 id="Summary">概述</h2>
 
 <p> <code><strong>Math.sinh()</strong></code> 函数返回一个数字(单位为角度)的双曲正弦值.</p>
 
-<h2 id="Syntax" name="Syntax">语法</h2>
+<h2 id="Syntax">语法</h2>
 
 <pre class="syntaxbox">Math.sinh(<em>x</em>)</pre>
 
-<h3 id="Parameters" name="Parameters">参数</h3>
+<h3 id="Parameters">参数</h3>
 
 <dl>
  <dt><code>x</code></dt>
  <dd>任意数字 (单位为度).</dd>
 </dl>
 
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 
 <p>双曲正弦的图像如下:</p>
 
 <p><img alt="" src="http://upload.wikimedia.org/wikipedia/commons/1/17/Sinh.png" style="height: 300px; width: 300px;"></p>
 
-<h2 id="Examples" name="Examples">示例</h2>
+<h2 id="Examples">示例</h2>
 
 <pre class="brush:js">Math.sinh(0)      // 0
 Math.sinh(1)      // 1.1752011936438014
@@ -111,7 +111,7 @@ Math.sinh("foo")  // NaN
 </table>
 </div>
 
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 
 <ul>
  <li>{{jsxref("Math.acos()")}}</li>
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/sqrt/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/sqrt/index.html
index badb08802a..320bb70e74 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/sqrt/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/sqrt/index.html
@@ -11,26 +11,26 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/sqrt
 
 <p>{{EmbedInteractiveExample("pages/js/math-sqrt.html")}}</p>
 
-<h2 id="Syntax" name="Syntax">语法</h2>
+<h2 id="Syntax">语法</h2>
 
 <pre class="syntaxbox"><code>Math.sqrt(<em>x</em>) </code></pre>
 
-<h3 id="Parameters" name="Parameters">参数</h3>
+<h3 id="Parameters">参数</h3>
 
 <dl>
  <dt><code>x</code></dt>
  <dd>一个数值</dd>
 </dl>
 
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 
 <p>如果参数 <code>number</code> 为负值，则 <code>sqrt</code> 返回{{jsxref("NaN")}}。</p>
 
 <p>由于 <code>sqrt</code> 是 <code>Math</code> 的静态方法，所以应该像这样使用：<code>Math.sqrt()</code>，而不是作为你创建的 <code>Math</code> 实例的方法。</p>
 
-<h2 id="Examples" name="Examples">示例</h2>
+<h2 id="Examples">示例</h2>
 
-<h3 id="Example_Using_Math.sqrt" name="Example:_Using_Math.sqrt">使用 <code>Math.sqrt</code></h3>
+<h3 id="Example_Using_Math.sqrt">使用 <code>Math.sqrt</code></h3>
 
 <pre><code>Math.sqrt(9); // 3
 Math.sqrt(2); // 1.414213562373095
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/sqrt1_2/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/sqrt1_2/index.html
index 2c3c139abe..413f66b993 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/sqrt1_2/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/sqrt1_2/index.html
@@ -5,15 +5,15 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/SQRT1_2
 ---
 <div>
  {{JSRef("Global_Objects", "Math")}}</div>
-<h2 id="Summary" name="Summary">概述</h2>
+<h2 id="Summary">概述</h2>
 <p><code><strong>Math.SQRT1_2</strong></code> 属性表示 1/2 的平方根，约为 0.707：</p>
 <p><math display="block"><semantics><mrow><mstyle mathvariant="monospace"><mi>Math.SQRT1_2</mi></mstyle><mo>=</mo><msqrt><mfrac><mn>1</mn><mn>2</mn></mfrac></msqrt><mo>=</mo><mfrac><mn>1</mn><msqrt><mn>2</mn></msqrt></mfrac><mo>≈</mo><mn>0.707</mn></mrow><annotation encoding="TeX">\mathtt{\mi{Math.SQRT1_2}} = \sqrt{\frac{1}{2}} = \frac{1}{\sqrt{2}} \approx 0.707</annotation></semantics></math></p>
 <div>
  {{js_property_attributes(0,0,0)}}</div>
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 <p>由于 <code>SQRT1_2</code> 是 <code>Math</code> 对象的静态属性，所以应该像这样使用：<code>Math.SQRT1_2</code>，而不是作为你创建的 <code>Math</code> 实例的属性（<code>Math</code> 不是构造函数）。</p>
-<h2 id="Examples" name="Examples">示例</h2>
-<h3 id="Example:_Using_SQRT1_2" name="Example:_Using_SQRT1_2">例子：使用 <code>SQRT1_2</code></h3>
+<h2 id="Examples">示例</h2>
+<h3 id="Example:_Using_SQRT1_2">例子：使用 <code>SQRT1_2</code></h3>
 <p>下面的函数返回 1/2 的平方根：</p>
 <pre class="brush:js">function getRoot1_2() {
    return Math.SQRT1_2
@@ -94,7 +94,7 @@ getRoot1_2() // 0.7071067811865476</pre>
   </tbody>
  </table>
 </div>
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 <ul>
  <li>The {{jsxref("Global_Objects/Math", "Math")}} object it belongs to.</li>
 </ul>
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/sqrt2/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/sqrt2/index.html
index 8eb81b8572..2c299fde7e 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/sqrt2/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/sqrt2/index.html
@@ -4,12 +4,12 @@ slug: Web/JavaScript/Reference/Global_Objects/Math/SQRT2
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/SQRT2
 ---
 <p>{{JSRef("Global_Objects", "Math")}}</p>
-<h2 id="Summary" name="Summary">概述</h2>
+<h2 id="Summary">概述</h2>
 <p><code><strong>Math.SQRT2</strong></code> 属性表示 2 的平方根，约为 1.414：</p>
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 <p>由于 <code>SQRT2</code> 是 <code>Math</code> 的静态属性，所以应该像这样使用：<code>Math.SQRT2</code>，而不是作为你创建的 <code>Math</code> 实例的属性（<code>Math</code> 不是构造函数）。</p>
-<h2 id="Examples" name="Examples">示例</h2>
-<h3 id="Example:_Using_Math.SQRT2" name="Example:_Using_Math.SQRT2">例子：使用 <code>Math.SQRT2</code></h3>
+<h2 id="Examples">示例</h2>
+<h3 id="Example:_Using_Math.SQRT2">例子：使用 <code>Math.SQRT2</code></h3>
 <p>下面的函数返回 2 的平方根：</p>
 <pre class="brush:js">function getRoot2() {
    return Math.SQRT2;
@@ -89,7 +89,7 @@ getRoot2(); // 1.4142135623730951</pre>
   </tbody>
  </table>
 </div>
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 <ul>
  <li>The {{jsxref("Global_Objects/Math", "Math")}} object it belongs to.</li>
 </ul>
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/tan/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/tan/index.html
index 49e0f3c7c2..3ecf39169a 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/tan/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/tan/index.html
@@ -5,22 +5,22 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/tan
 ---
 <div>
  {{JSRef("Global_Objects", "Math")}}</div>
-<h2 id="Summary" name="Summary">概述</h2>
+<h2 id="Summary">概述</h2>
 <p><code><strong>Math.tan()</strong></code> 方法返回一个数值的正切值。</p>
-<h2 id="Syntax" name="Syntax">语法</h2>
+<h2 id="Syntax">语法</h2>
 <pre class="syntaxbox">Math.tan(<em>x</em>)</pre>
-<h3 id="Parameters" name="Parameters">参数</h3>
+<h3 id="Parameters">参数</h3>
 <dl>
  <dt>
   <code>x</code></dt>
  <dd>
   一个数值，表示一个角（单位：弧度）。</dd>
 </dl>
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 <p><code>tan</code> 方法返回一个数值，表示一个角的正切值。</p>
 <p>由于 <code>tan</code> 是 <code>Math</code> 的静态方法，所以应该像这样使用 <code>Math.tan()</code>，而不是作为你创建的 <code>Math</code> 实例的方法。</p>
-<h2 id="Examples" name="Examples">示例</h2>
-<h3 id="Example:_Using_Math.tan" name="Example:_Using_Math.tan">例子：使用 <code>Math.tan</code></h3>
+<h2 id="Examples">示例</h2>
+<h3 id="Example:_Using_Math.tan">例子：使用 <code>Math.tan</code></h3>
 <p>下面的函数返回变量 <code>x</code> 的正切值：</p>
 <pre class="brush:js">function getTan(x) {
    return Math.tan(x);
diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/trunc/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/trunc/index.html
index 485a96e75d..3568f3bd78 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/trunc/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/trunc/index.html
@@ -12,11 +12,11 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/trunc
 
 <p><code><strong>Math.trunc()</strong></code> 方法会将数字的小数部分去掉，只保留整数部分。</p>
 
-<h2 id="Syntax" name="Syntax">语法</h2>
+<h2 id="Syntax">语法</h2>
 
 <pre class="syntaxbox">Math.trunc(<em>value</em>)</pre>
 
-<h3 id="Parameters" name="Parameters">参数</h3>
+<h3 id="Parameters">参数</h3>
 
 <dl>
  <dt><code>value</code></dt>
@@ -27,7 +27,7 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/trunc
 
 <p>给定数字的整数部分</p>
 
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 
 <p>不像 <code>Math</code> 的其他三个方法： {{jsxref("Math.floor()")}}、{{jsxref("Math.ceil()")}}、{{jsxref("Math.round()")}} ，<code>Math.trunc()</code> 的执行逻辑很简单，仅仅是<strong>删除</strong>掉数字的小数部分和小数点，不管参数是正数还是负数。</p>
 
@@ -35,7 +35,7 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/trunc
 
 <p>因为 <code>trunc()</code> 是 <code>Math</code> 对象的静态方法，你必须用 <code>Math.trunc()</code> 来使用，而不是调用你创建的 <code>Math</code> 对象的一个实例方法（<code>Math</code> 没有构造函数）</p>
 
-<h2 id="Examples" name="Examples">示例</h2>
+<h2 id="Examples">示例</h2>
 
 <pre class="brush:js">Math.trunc(13.37)    // 13
 Math.trunc(42.84)    // 42
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