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语法高亮，滚动条美化，设置页面调整

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docs/javascript/Reference/Global_Objects/Array/some.html
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@@ -6,7 +6,7 @@
</div>
<div><iframe class="interactive interactive-js" frameborder="0" height="250" src="https://interactive-examples.mdn.mozilla.net/pages/js/array-some.html" width="100%"></iframe></div>
<h2 id="Syntax" name="Syntax">语法</h2>
<pre class="syntaxbox"><code><em>arr</em>.some(<em>callback(element[, index[, array]])[, thisArg]</em>)</code></pre>
<pre><code class="language-javascript"><code><em>arr</em>.some(<em>callback(element[, index[, array]])[, thisArg]</em>)</code></code></pre>
<h3 id="Parameters" name="Parameters">参数</h3>
<dl>
<dt><code>callback</code></dt>
@@ -35,19 +35,19 @@
<h3 id="Example:_Testing_size_of_all_array_elements" name="Example:_Testing_size_of_all_array_elements">测试数组元素的值</h3>
<p>下面的例子检测在数组中是否有元素大于 10。</p>
<p> </p>
<pre class="brush: js">function isBiggerThan10(element, index, array) {
<pre><code class="language-javascript">function isBiggerThan10(element, index, array) {
return element &gt; 10;
}
[2, 5, 8, 1, 4].some(isBiggerThan10); // false
[12, 5, 8, 1, 4].some(isBiggerThan10); // true</pre>
[12, 5, 8, 1, 4].some(isBiggerThan10); // true</code></pre>
<h3 id="使用箭头函数测试数组元素的值">使用箭头函数测试数组元素的值</h3>
<p><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/Arrow_functions">箭头函数</a> 可以通过更简洁的语法实现相同的用例.</p>
<pre class="brush: js"><code>[2, 5, 8, 1, 4].some(x =&gt; x &gt; 10); // false
[12, 5, 8, 1, 4].some(x =&gt; x &gt; 10); // true</code></pre>
<pre><code class="language-javascript"><code>[2, 5, 8, 1, 4].some(x =&gt; x &gt; 10); // false
[12, 5, 8, 1, 4].some(x =&gt; x &gt; 10); // true</code></code></pre>
<h3 id="判断数组元素中是否存在某个值">判断数组元素中是否存在某个值</h3>
<p>此例中为模仿 <code>includes()</code>  方法, 若元素在数组中存在, 则回调函数返回值为 <code>true</code> :</p>
<pre class="brush: js">var fruits = ['apple', 'banana', 'mango', 'guava'];
<pre><code class="language-javascript">var fruits = ['apple', 'banana', 'mango', 'guava'];
function checkAvailability(arr, val) {
return arr.some(function(arrVal) {
@@ -56,18 +56,18 @@ function checkAvailability(arr, val) {
}
checkAvailability(fruits, 'kela'); // false
checkAvailability(fruits, 'banana'); // true</pre>
checkAvailability(fruits, 'banana'); // true</code></pre>
<h3 id="使用箭头函数判断数组元素中是否存在某个值">使用箭头函数判断数组元素中是否存在某个值</h3>
<pre class="brush: js">var fruits = ['apple', 'banana', 'mango', 'guava'];
<pre><code class="language-javascript">var fruits = ['apple', 'banana', 'mango', 'guava'];
function checkAvailability(arr, val) {
return arr.some(arrVal =&gt; val === arrVal);
}
checkAvailability(fruits, 'kela'); // false
checkAvailability(fruits, 'banana'); // true</pre>
checkAvailability(fruits, 'banana'); // true</code></pre>
<h3 id="将任意值转换为布尔类型">将任意值转换为布尔类型</h3>
<pre class="brush: js">var TRUTHY_VALUES = [true, 'true', 1];
<pre><code class="language-javascript">var TRUTHY_VALUES = [true, 'true', 1];
function getBoolean(value) {
'use strict';
@@ -85,10 +85,10 @@ getBoolean(false); // false
getBoolean('false'); // false
getBoolean(1); // true
getBoolean('true'); // true
</pre>
</code></pre>
<h2 id="Compatibility" name="Compatibility">Polyfill</h2>
<p>在第 5 版时，<code>some()</code> 被添加进 ECMA-262 标准；这样导致某些实现环境可能不支持它。你可以把下面的代码插入到脚本的开头来解决此问题，从而允许在那些没有原生支持它的实现环境中使用它。该算法是 ECMA-262 第 5 版中指定的算法，假定 <code>Object </code>和 <code>TypeError</code> 拥有他们的初始值，且 <code>fun.call</code> 等价于 <code><a href="Reference/Global_Objects/Function/call" title="call() 方法调用一个函数, 其具有一个指定的this值和分别地提供的参数(参数的列表)。"><code>Function.prototype.call</code></a></code>。</p>
<pre class="brush: js">// Production steps of ECMA-262, Edition 5, 15.4.4.17
<pre><code class="language-javascript">// Production steps of ECMA-262, Edition 5, 15.4.4.17
// Reference: http://es5.github.io/#x15.4.4.17
if (!Array.prototype.some) {
Array.prototype.some = function(fun/*, thisArg*/) {
@@ -114,7 +114,7 @@ if (!Array.prototype.some) {
return false;
};
}</pre>
}</code></pre>
<h2 id="规范">规范</h2>
<table class="standard-table">
<tbody>