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| author | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:40:17 -0500 |
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| committer | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:40:17 -0500 |
| commit | 33058f2b292b3a581333bdfb21b8f671898c5060 (patch) | |
| tree | 51c3e392513ec574331b2d3f85c394445ea803c6 /files/zh-cn/web/javascript/reference/global_objects/math/min/index.html | |
| parent | 8b66d724f7caf0157093fb09cfec8fbd0c6ad50a (diff) | |
| download | translated-content-33058f2b292b3a581333bdfb21b8f671898c5060.tar.gz translated-content-33058f2b292b3a581333bdfb21b8f671898c5060.tar.bz2 translated-content-33058f2b292b3a581333bdfb21b8f671898c5060.zip | |
initial commit
Diffstat (limited to 'files/zh-cn/web/javascript/reference/global_objects/math/min/index.html')
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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 new file mode 100644 index 0000000000..2cc029c6c3 --- /dev/null +++ b/files/zh-cn/web/javascript/reference/global_objects/math/min/index.html @@ -0,0 +1,155 @@ +--- +title: Math.min() +slug: Web/JavaScript/Reference/Global_Objects/Math/min +tags: + - JavaScript + - Math + - Math.min + - 参考 + - 方法 +translation_of: Web/JavaScript/Reference/Global_Objects/Math/min +--- +<div>{{JSRef}}</div> + +<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> + +<pre class="syntaxbox"><code>Math.min([<em>value1</em>[,<em>value2</em>, ...]]) </code></pre> + +<h3 id="Parameters" name="Parameters">参数</h3> + +<dl> + <dt><code>value1, value2, ...</code></dt> + <dd>一组数值</dd> +</dl> + +<h3 id="返回值">返回值</h3> + +<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> + +<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> + +<p>如果没有参数,结果为{{jsxref("Infinity")}}。</p> + +<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> + +<h3 id="Example:_Using_Math.min" name="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> + +<pre class="brush:js">var x = 10, y = -20; +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> + +<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> + +<pre class="brush: js">var x = f(foo); + +if (x > boundary) { + x = boundary; +}</pre> + +<p>可以写成:</p> + +<pre class="brush:js">var x = Math.min(f(foo), boundary);</pre> + +<div>另外,{{jsxref("Math.max()")}} 也可以被用来以相似的方式裁剪一个值。</div> + +<div> </div> + +<h2 id="规范">规范</h2> + +<table class="standard-table"> + <tbody> + <tr> + <th scope="col">规范版本</th> + <th scope="col">规范状态</th> + <th scope="col">注解</th> + </tr> + <tr> + <td>ECMAScript 1st Edition. Implemented in JavaScript 1.0</td> + <td>{{Spec2('ES1')}}</td> + <td>初始定义。在 JavaScript 1.0 中实现。</td> + </tr> + <tr> + <td>{{SpecName('ES5.1', '#sec-15.8.2.12', 'Math.min')}}</td> + <td>{{Spec2('ES5.1')}}</td> + <td> </td> + </tr> + <tr> + <td>{{SpecName('ES6', '#sec-math.min', 'Math.min')}}</td> + <td>{{Spec2('ES6')}}</td> + <td> </td> + </tr> + <tr> + <td>{{SpecName('ESDraft', '#sec-math.min', 'Math.min')}}</td> + <td>{{Spec2('ESDraft')}}</td> + <td> </td> + </tr> + </tbody> +</table> + +<h2 id="浏览器兼容性">浏览器兼容性</h2> + +<p>{{ CompatibilityTable() }}</p> + +<div id="compat-desktop"> +<table class="compat-table"> + <tbody> + <tr> + <th>Feature</th> + <th>Chrome</th> + <th>Firefox (Gecko)</th> + <th>Internet Explorer</th> + <th>Opera</th> + <th>Safari</th> + </tr> + <tr> + <td>Basic support</td> + <td>{{ CompatVersionUnknown() }}</td> + <td>{{ CompatVersionUnknown() }}</td> + <td>{{ CompatVersionUnknown() }}</td> + <td>{{ CompatVersionUnknown() }}</td> + <td>{{ CompatVersionUnknown() }}</td> + </tr> + </tbody> +</table> +</div> + +<div id="compat-mobile"> +<table class="compat-table"> + <tbody> + <tr> + <th>Feature</th> + <th>Android</th> + <th>Chrome for Android</th> + <th>Firefox Mobile (Gecko)</th> + <th>IE Mobile</th> + <th>Opera Mobile</th> + <th>Safari Mobile</th> + </tr> + <tr> + <td>Basic support</td> + <td>{{ CompatVersionUnknown() }}</td> + <td>{{ CompatVersionUnknown() }}</td> + <td>{{ CompatVersionUnknown() }}</td> + <td>{{ CompatVersionUnknown() }}</td> + <td>{{ CompatVersionUnknown() }}</td> + <td>{{ CompatVersionUnknown() }}</td> + </tr> + </tbody> +</table> +</div> + +<h2 id="See_also" name="See_also">相关链接</h2> + +<ul> + <li>{{jsxref("Math.max()")}}</li> +</ul> |
