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10
docs/javascript/Reference/Global_Objects/Number/isInteger.html
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@@ -3,7 +3,7 @@
<p><strong><code>Number.isInteger()</code></strong> 方法用来判断给定的参数是否为整数。</p>
<p><iframe class="interactive interactive-js" frameborder="0" height="250" src="https://interactive-examples.mdn.mozilla.net/pages/js/number-isinteger.html" width="100%"></iframe></p>
<h2 id="Syntax" name="Syntax">语法</h2>
<pre class="syntaxbox"><code>Number.isInteger(v<var>alue</var>)</code></pre>
<pre><code class="language-javascript"><code>Number.isInteger(v<var>alue</var>)</code></code></pre>
<h3 id="Parameters" name="Parameters">参数</h3>
<dl>
<dt><code>value</code></dt>
@@ -14,7 +14,7 @@
<h2 id="Description" name="Description">描述</h2>
<p>如果被检测的值是整数，则返回 <code>true</code>，否则返回 <code>false</code>。注意 <a href="Reference/Global_Objects/NaN" title="全局属性 NaN 的值表示不是一个数字（Not-A-Number）。"><code>NaN</code></a> 和正负 <a href="Reference/Global_Objects/Infinity" title="全局属性 Infinity 是一个数值，表示无穷大。"><code>Infinity</code></a> 不是整数。</p>
<h2 id="Example" name="Example">示例</h2>
<pre class="brush: js">Number.isInteger(0); // true
<pre><code class="language-javascript">Number.isInteger(0); // true
Number.isInteger(1); // true
Number.isInteger(-100000); // true
@@ -26,14 +26,14 @@ Number.isInteger(-Infinity); // false
Number.isInteger("10"); // false
Number.isInteger(true); // false
Number.isInteger(false); // false
Number.isInteger([1]); // false</pre>
Number.isInteger([1]); // false</code></pre>
<h2 id="Polyfill" name="Polyfill">Polyfill</h2>
<pre class="brush: js">Number.isInteger = Number.isInteger || function(value) {
<pre><code class="language-javascript">Number.isInteger = Number.isInteger || function(value) {
return typeof value === "number" &amp;&amp;
  isFinite(value) &amp;&amp;
  Math.floor(value) === value;
};
</pre>
</code></pre>
<h2 id="规范">规范</h2>
<table class="standard-table">
<tbody>