增加自定义插件,新增js,java,vue,jquery手册

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<h1 class="entry-title">jQuery.isEmptyObject()</h1>
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所属分类:<span class="category"><a href="/category/utilities/">工具类</a></span>
<span class="pull-right">英文文档:<a href="https://api.jquery123.com/jQuery.isEmptyObject/" target="_blank">jQuery.isEmptyObject()</a></span>
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<article class="entry method" id="jQuery-isEmptyObject1"><h2 class="section-title">
<span class="name">jQuery.isEmptyObject( object )</span><span class="returns">返回: <a href="/Types/#Boolean">Boolean</a></span>
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<p class="desc"><strong>描述: </strong>检查对象是否为空(不包含任何属性)。</p>
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<span class="version-details">添加的版本: <a href="/category/version/1.4/">1.4</a></span>jQuery.isEmptyObject( object )</h4>
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<div><strong>object</strong></div>
<div>类型: <a href="/Types/#Object">Object</a>
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<div>将要检查是否为空的对象。</div>
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<div class="longdesc" id="entry-longdesc">
<p>从 jQuery 1.4 开始这个方法既检测对象本身的属性也检测从原型继承的属性因此没有使用hasOwnProperty。参数应当是一个普通的JavaScript对象
对于其他类型的对象DOM元素原始strings/numbershost对象在跨浏览器中可能无法提供一致的结果。
要确定一个对象是否是一个普通的JavaScript对象使用<a href="/jQuery.isPlainObject"><code>$.isPlainObject()</code></a></p>
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<section class="entry-examples" id="entry-examples"><header><h2 class="underline">例子:</h2></header><div class="entry-example" id="example-0">
<h4><span class="desc">检查一个对象是否为空对象。</span></h4>
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<pre><div class="container"><div class="line"><code>jQuery.isEmptyObject({}) <span class="comment">// true</span></code></div></div><div class="container"><div class="line"><code> jQuery.isEmptyObject({ foo: <span class="string">"bar"</span> }) <span class="comment">// false</span></code></div></div></pre>
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