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<h2 class=block>What is jQuery?</h2>
<p>jQuery is a fast, small, and feature-rich JavaScript library. It makes
things like HTML document traversal and manipulation, event handling,
animation, and Ajax much simpler with an easy-to-use API that works across
a multitude of browsers. With a combination of versatility and
extensibility, jQuery has changed the way that millions of people write
JavaScript.</p>
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<h2 class=block>Resources</h2>
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<li><a href=https://api.jquery.com/>jQuery Core API Documentation</a></li>
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<section>
<h2 class=block>A Brief Look</h2>
<h3>DOM Traversal and Manipulation</h3>
<p>Get the <code><button></code> element with the class 'continue' and change its HTML to 'Next Step...'</p>
<div class="syntaxhighlighter javascript">
<table>
<tbody>
<tr>
<td class=gutter>
<div class="line n1">1</div>
</td>
<td class=code>
<pre><div class=container><div class=line><code>$( <span class=hljs-string>"button.continue"</span> ).html( <span class=hljs-string>"Next Step..."</span> )</code></div></div></pre>
</td>
</tr>
</tbody>
</table>
</div>
<h3>Event Handling</h3>
<p>Show the <code>#banner-message</code> element that is hidden with
<code>display:none</code> in its CSS when any button in <code>#button-container</code> is
clicked.</p>
<div class="syntaxhighlighter javascript">
<table>
<tbody>
<tr>
<td class=gutter>
<div class="line n1">1</div>
<div class="line n2">2</div>
<div class="line n3">3</div>
<div class="line n4">4</div>
</td>
<td class=code>
<pre><div class=container><div class=line><code><span class=hljs-keyword>var</span> hiddenBox = $( <span class=hljs-string>"#banner-message"</span> );</code></div></div><div class=container><div class=line><code>$( <span class=hljs-string>"#button-container button"</span> ).on( <span class=hljs-string>"click"</span>, <span class=hljs-function><span class=hljs-keyword>function</span>(<span class=hljs-params> event </span>) </span>{</code></div></div><div class=container><div class=line><code> hiddenBox.show();</code></div></div><div class=container><div class=line><code>});</code></div></div></pre>
</td>
</tr>
</tbody>
</table>
</div>
<h3>Ajax</h3>
<p>Call a local script on the server <code>/api/getWeather</code>
with the query parameter <code>zipcode=97201</code>
and replace the element <code>#weather-temp</code>'s html with the returned text.</p>
<div class="syntaxhighlighter javascript">
<table>
<tbody>
<tr>
<td class=gutter>
<div class="line n1">1</div>
<div class="line n2">2</div>
<div class="line n3">3</div>
<div class="line n4">4</div>
<div class="line n5">5</div>
<div class="line n6">6</div>
<div class="line n7">7</div>
<div class="line n8">8</div>
<div class="line n9">9</div>
</td>
<td class=code>
<pre><div class=container><div class=line><code>$.ajax({</code></div></div><div class=container><div class=line><code> <span class=hljs-attr>url</span>: <span class=hljs-string>"/api/getWeather"</span>,</code></div></div><div class=container><div class=line><code> <span class=hljs-attr>data</span>: {</code></div></div><div class=container><div class=line><code> <span class=hljs-attr>zipcode</span>: <span class=hljs-number>97201</span></code></div></div><div class=container><div class=line><code> },</code></div></div><div class=container><div class=line><code> <span class=hljs-attr>success</span>: <span class=hljs-function><span class=hljs-keyword>function</span>(<span class=hljs-params> result </span>) </span>{</code></div></div><div class=container><div class=line><code> $( <span class=hljs-string>"#weather-temp"</span> ).html( <span class=hljs-string>"<strong>"</span> + result + <span class=hljs-string>"</strong> degrees"</span> );</code></div></div><div class=container><div class=line><code> }</code></div></div><div class=container><div class=line><code>});</code></div></div></pre>
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</section>
<section>
<h2 class=block>Related Projects</h2>
<h3><a href=https://jqueryui.com/>jQuery UI</a></h3>
<p>This project is in maintenance-only mode. <a href=https://blog.jquery.com/2021/10/07/jquery-maintainers-update-and-transition-jquery-ui-as-part-of-overall-modernization-efforts/>Learn more</a>.</p>
<h3><a href=https://jquerymobile.com/>jQuery Mobile</a></h3>
<p>This project is deprecated. <a href=https://blog.jqueryui.com/2021/10/jquery-maintainers-continue-modernization-initiative-with-deprecation-of-jquery-mobile/>Learn more</a>.</p>
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<img src="placeholder.png" alt="Learning jQuery 4th Edition by Karl Swedberg and Jonathan Chaffer" width=92 height=114 loading=lazy>
Learning jQuery Fourth Edition
<cite>Karl Swedberg and Jonathan Chaffer</cite>
</a>
</li>
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<a href=https://www.manning.com/books/jquery-in-action-third-edition>
<img src="placeholder.png" alt="jQuery in Action by Bear Bibeault, Yehuda Katz, and Aurelio De Rosa" width=92 height=114 loading=lazy>
jQuery in Action
<cite>Bear Bibeault, Yehuda Katz, and Aurelio De Rosa</cite>
</a>
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<a href=https://www.syncfusion.com/ebooks/jquery>
<img src="placeholder.png" alt="jQuery Succinctly by Cody Lindley" width=92 height=114 loading=lazy>
jQuery Succinctly
<cite>Cody Lindley</cite>
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