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| author | t7yang <t7yang@gmail.com> | 2022-01-10 08:38:07 +0800 |
|---|---|---|
| committer | Irvin <irvinfly@gmail.com> | 2022-02-16 02:35:54 +0800 |
| commit | c40612041809fe289aba58aefa170bbe784aba1f (patch) | |
| tree | 8ca89b071d04afcf7abd6d9a04d0765a041d9c8a /files/zh-cn/web/javascript/reference/global_objects/isnan/index.html | |
| parent | 12a899ab8540bc84f56a0dc6491be80a48499d49 (diff) | |
| download | translated-content-c40612041809fe289aba58aefa170bbe784aba1f.tar.gz translated-content-c40612041809fe289aba58aefa170bbe784aba1f.tar.bz2 translated-content-c40612041809fe289aba58aefa170bbe784aba1f.zip | |
remove name attribute for zh-CN
Diffstat (limited to 'files/zh-cn/web/javascript/reference/global_objects/isnan/index.html')
| -rw-r--r-- | files/zh-cn/web/javascript/reference/global_objects/isnan/index.html | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/files/zh-cn/web/javascript/reference/global_objects/isnan/index.html b/files/zh-cn/web/javascript/reference/global_objects/isnan/index.html index 1e23c1d0e4..00704c3228 100644 --- a/files/zh-cn/web/javascript/reference/global_objects/isnan/index.html +++ b/files/zh-cn/web/javascript/reference/global_objects/isnan/index.html @@ -13,11 +13,11 @@ translation_of: Web/JavaScript/Reference/Global_Objects/isNaN <p>{{EmbedInteractiveExample("pages/js/globalprops-isnan.html")}}</p> -<h2 id="Syntax" name="Syntax">语法</h2> +<h2 id="Syntax">语法</h2> <pre class="syntaxbox"><code>isNaN(value)</code></pre> -<h3 id="Parameters" name="Parameters">参数</h3> +<h3 id="Parameters">参数</h3> <dl> <dt><code>value</code></dt> @@ -28,13 +28,13 @@ translation_of: Web/JavaScript/Reference/Global_Objects/isNaN <p>如果给定值为 {{jsxref("NaN")}}则返回值为<code>true</code>；否则为<code>false</code>。</p> -<h2 id="Description" name="Description">描述</h2> +<h2 id="Description">描述</h2> -<h3 id="The_necessity_of_an_isNaN_function" name="The_necessity_of_an_isNaN_function"><code>isNaN</code> 函数的必要性</h3> +<h3 id="The_necessity_of_an_isNaN_function"><code>isNaN</code> 函数的必要性</h3> <p>与 JavaScript 中其他的值不同，{{jsxref("Global_Objects/NaN", "NaN")}}不能通过相等操作符（== 和 ===）来判断 ，因为 <code>NaN == NaN</code> 和 <code>NaN === NaN</code> 都会返回 <code>false</code>。 因此，<code>isNaN</code> 就很有必要了。</p> -<h3 id="Origin_of_NaN_values" name="Origin_of_NaN_values"><code>NaN值</code>的产生</h3> +<h3 id="Origin_of_NaN_values"><code>NaN值</code>的产生</h3> <p>当算术运算返回一个未定义的或无法表示的值时，<code>NaN</code>就产生了。但是，<code>NaN</code>并不一定用于表示某些值超出表示范围的情况。将某些不能强制转换为数值的非数值转换为数值的时候，也会得到<code>NaN</code>。</p> @@ -53,7 +53,7 @@ translation_of: Web/JavaScript/Reference/Global_Objects/isNaN return n !== n; };</pre> -<h2 id="Examples" name="Examples">示例</h2> +<h2 id="Examples">示例</h2> <pre class="brush: js">isNaN(NaN); // true isNaN(undefined); // true |