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Diffstat (limited to 'files/zh-cn/web/javascript/reference/global_objects/array/length/index.html')
| -rw-r--r-- | files/zh-cn/web/javascript/reference/global_objects/array/length/index.html | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/files/zh-cn/web/javascript/reference/global_objects/array/length/index.html b/files/zh-cn/web/javascript/reference/global_objects/array/length/index.html index 8f17e9af1f..de5862921d 100644 --- a/files/zh-cn/web/javascript/reference/global_objects/array/length/index.html +++ b/files/zh-cn/web/javascript/reference/global_objects/array/length/index.html @@ -82,25 +82,25 @@ function printEntries(arr) { <p>下面的例子中，通过数组下标遍历数组元素，并把每个元素的值修改为原值的2倍。</p> -<pre class="brush: js line-numbers language-js"><code class="language-js">var numbers = [1, 2, 3, 4, 5]; +<pre class="brush: js line-numbers language-js">var numbers = [1, 2, 3, 4, 5]; var length = numbers.length; for (var i = 0; i < length; i++) { numbers[i] *= 2; } -// 遍历后的结果 [2, 4, 6, 8, 10]</code></pre> +// 遍历后的结果 [2, 4, 6, 8, 10]</pre> <h3 id="Example:_Shortening_an_array" name="Example:_Shortening_an_array">截断数组</h3> <p>下面的例子中，如果数组长度大于 3，则把该数组的长度截断为 3 。</p> -<pre class="brush: js line-numbers language-js"><code class="language-js">var numbers = [1, 2, 3, 4, 5]; +<pre class="brush: js line-numbers language-js">var numbers = [1, 2, 3, 4, 5]; if (numbers.length > 3) { numbers.length = 3; } console.log(numbers); // [1, 2, 3] -console.log(numbers.length); // 3</code></pre> +console.log(numbers.length); // 3</pre> <h2 id="规范">规范</h2> |