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diff --git a/files/zh-cn/web/javascript/reference/global_objects/number/tointeger/index.html b/files/zh-cn/web/javascript/reference/global_objects/number/tointeger/index.html new file mode 100644 index 0000000000..24abe2125e --- /dev/null +++ b/files/zh-cn/web/javascript/reference/global_objects/number/tointeger/index.html @@ -0,0 +1,97 @@ +--- +title: Number.toInteger() +slug: Web/JavaScript/Reference/Global_Objects/Number/toInteger +translation_of: Archive/Web/JavaScript/Number.toInteger +--- +<div>{{JSRef("Global_Objects", "Number")}} {{obsolete_header("33")}} {{non-standard_header}}</div> + +<h2 id="Summary" name="Summary">概览</h2> + +<p><strong><code>Number.toInteger()</code></strong> 用来将参数转换成整数,但该方法的实现已被移除.</p> + +<p>如果参数是 {{jsxref("Global_Objects/NaN", "NaN")}}, {{jsxref("Global_Objects/null", "null")}} 或 {{jsxref("Global_Objects/undefined", "undefined")}}, 会返回0 . 如果参数值是true返回1,false的话返回<span style="line-height: 19.0909080505371px;">0</span>.</p> + +<h2 id="Syntax" name="Syntax">语法</h2> + +<pre class="syntaxbox"><code>Number.toInteger(<var>number</var>)</code></pre> + +<h3 id="Parameters" name="Parameters">参数</h3> + +<dl> + <dt><code>number</code></dt> + <dd>将被转换成整数的参数.</dd> +</dl> + +<h2 id="Examples" name="Examples">示例</h2> + +<h3 id="Example:_Using_toInteger" name="Example:_Using_toInteger">例子: 使用 <code>toInteger()方法</code></h3> + +<pre class="brush: js">Number.toInteger(0.1); // 0 +Number.toInteger(1); // 1 +Number.toInteger(Math.PI); // 3 +Number.toInteger(null); // 0 +</pre> + +<h2 id="Specifications" name="Specifications">Specifications</h2> + +<ul> + <li><code>Number.toInteger()</code> 是<span style="line-height: 19.0909080505371px;">ECMAScript 6 起草的一部分</span>, 但在2013-8-23的Draft Rev 17 中被移除 .</li> +</ul> + +<h2 id="Browser_compatibility" name="Browser_compatibility">浏览器兼容性</h2> + +<div>{{CompatibilityTable}}</div> + +<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>{{CompatNo}}</td> + <td>Firefox 16 to 32</td> + <td>{{CompatNo}}</td> + <td>{{CompatNo}}</td> + <td>{{CompatNo}}</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>{{CompatNo}}</td> + <td>{{CompatNo}}</td> + <td>Firefox 16 to 32</td> + <td>{{CompatNo}}</td> + <td>{{CompatNo}}</td> + <td>{{CompatNo}}</td> + </tr> + </tbody> +</table> +</div> + +<h2 id="See_also" name="See_also">See also</h2> + +<ul> + <li>归属于 {{jsxref("Global_Objects/Number", "Number")}} 对象.</li> +</ul> |