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JS-Contains.html
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JS-Contains.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>JS Contains</title>
<style>
* {
font-family: Arial, Helvetica, sans-serif;
}
table {
font-family: arial, sans-serif;
border-collapse: collapse;
width: 50%;
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td,
th {
border: 1px solid #dddddd;
text-align: left;
padding: 8px;
}
tr:nth-child(even) {
background-color: #dddddd;
}
.xyz {
background-color: green;
color: red;
}
code[class*="language-"],
pre[class*="language-"] {
color: black;
background: none;
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font-family: Consolas, Monaco, "Andale Mono", "Ubuntu Mono", monospace;
font-size: 1em;
text-align: left;
white-space: pre;
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word-break: normal;
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hyphens: none;
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:not(pre) > code[class*="language-"]::after,
pre[class*="language-"]::after {
right: 0.75em;
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position: relative;
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margin-bottom: 0.5em;
overflow: visible;
padding: 0;
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code[class*="language-"],
pre[class*="language-"] {
color: black;
background: none;
background-color: rgba(0, 0, 0, 0);
font-family: Consolas, Monaco, "Andale Mono", "Ubuntu Mono", monospace;
font-size: 1em;
text-align: left;
white-space: pre;
word-spacing: normal;
word-break: normal;
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line-height: 1.5;
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-o-tab-size: 4;
tab-size: 4;
-webkit-hyphens: none;
-moz-hyphens: none;
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display: block;
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color: #212529;
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pre {
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"Courier New", monospace;
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*,
::after,
::before {
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}
@import "color.css";
* {
box-sizing: border-box;
}
body {
font: 18px/24px arial;
}
#wrapper {
border: 1px solid black;
width: 1000px;
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#wrapper {
width: auto;
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#header h1 {
padding: 30px 0 0 0;
text-align: center;
}
}
</style>
</head>
<body>
<hr />
<h3>JS Contains</h3>
<p>
The <code>contains()</code> method
returns <code>true</code> if a node is a descendant of a node.
</p>
<p>
The <code>contains()</code> method
returns <code>false</code> if not.
</p>
<h3>Syntax</h3>
<pre
class="language-javascript"
tabindex="0"
><code class="language-javascript">node<span class="token punctuation">.</span><span class="token function">contains</span><span class="token punctuation">(</span>node<span class="token punctuation">)</span>
</code></pre>
<h3>Parameters</h3>
<table class="table table-bordered table-striped">
<tbody>
<tr></tr>
<tr>
<td>Parameter</td>
<td>Description</td>
</tr>
<tr>
<td><em>node</em></td>
<td>
Required.<br />
The node that may be a descendant of the node.
</td>
</tr>
</tbody>
</table>
<h3>Return Value</h3>
<table class="table table-bordered table-striped">
<tbody>
<tr></tr>
<tr>
<td>Type</td>
<td>Description</td>
</tr>
<tr>
<td>Boolean</td>
<td>
<code>true</code> - The node is a descendant<br />
<code>false</code> - The node is NOT a descendant
</td>
</tr>
</tbody>
</table>
<h3>html file</h3>
<pre
class="language-markup"
tabindex="0"
><code class="language-markup"><span class="token doctype"><span class="token punctuation"><!</span><span class="token doctype-tag">DOCTYPE</span> <span class="token name">html</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>html</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>head</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>title</span><span class="token punctuation">></span></span>DOM Navigation<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>title</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>style</span><span class="token punctuation">></span></span><span class="token style"><span class="token language-css">
<span class="token selector">h2</span><span class="token punctuation">{</span> <span class="token property">margin</span><span class="token punctuation">:</span> 0 0 10px<span class="token punctuation">;</span> <span class="token punctuation">}</span>
<span class="token selector">#test</span><span class="token punctuation">{</span>
<span class="token property">background</span><span class="token punctuation">:</span> #ffff00<span class="token punctuation">;</span>
<span class="token property">width</span><span class="token punctuation">:</span> 800px<span class="token punctuation">;</span>
<span class="token property">min-height</span><span class="token punctuation">:</span> 250px<span class="token punctuation">;</span>
<span class="token property">padding</span><span class="token punctuation">:</span> 10px 10px<span class="token punctuation">;</span>
<span class="token property">margin</span><span class="token punctuation">:</span> 0 auto<span class="token punctuation">;</span>
<span class="token punctuation">}</span>
</span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>style</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>head</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>body</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>div</span> <span class="token attr-name">id</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>test<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>h2</span><span class="token punctuation">></span></span>Yahoo Baba : JavaScript Contains Method<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>h2</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>p</span><span class="token punctuation">></span></span>
Lorem ipsum dolor sit amet, consectetur adipisicing elit. Explicabo corporis adipisci alias cupiditate officiis consequatur, fuga, amet quos numquam perferendis saepe labore dolorem reiciendis reprehenderit facilis repudiandae praesentium quis delectus voluptates, repellendus recusandae. Itaque consequuntur, corrupti quasi illum iusto perferendis autem blanditiis magni eum, repellendus architecto ratione ipsum molestiae laboriosam.
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>p</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>div</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>p</span> <span class="token attr-name">id</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>abc<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
Lorem ipsum dolor sit amet consectetur, adipisicing elit. Voluptatum magni vel inventore illum facere tenetur eveniet quam ex nemo eum. Dolorum suscipit corrupti asperiores dicta inventore debitis facilis amet totam neque reprehenderit minima ratione corporis quasi aperiam iusto consectetur nostrum enim optio, quas rerum doloribus nesciunt dolor deleniti. Ea, minima.
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>p</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>div</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>div</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>script</span> <span class="token attr-name">src</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>js/dom-create.js<span class="token punctuation">"</span></span><span class="token punctuation">></span></span><span class="token script"></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>script</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>body</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>html</span><span class="token punctuation">></span></span>
</code></pre>
<h3>dom-create.js</h3>
<pre
class="language-javascript"
tabindex="0"
><code class="language-javascript"><span class="token comment">/* JavaScript Contains Method*/</span>
<span class="token keyword">var</span> parentElement <span class="token operator">=</span> document<span class="token punctuation">.</span><span class="token function">getElementById</span><span class="token punctuation">(</span><span class="token string">"test"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">var</span> target <span class="token operator">=</span> document<span class="token punctuation">.</span><span class="token function">getElementById</span><span class="token punctuation">(</span><span class="token string">"abc"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">var</span> find <span class="token operator">=</span> parentElement<span class="token punctuation">.</span><span class="token function">contains</span><span class="token punctuation">(</span>target<span class="token punctuation">)</span><span class="token punctuation">;</span>
console<span class="token punctuation">.</span><span class="token function">log</span><span class="token punctuation">(</span>find<span class="token punctuation">)</span><span class="token punctuation">;</span></code></pre>
<hr />
</body>
</html>