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<h1><a href="/questions/7211251/jquery-javascript-div-selection-via-each-gives-htmldivelement-object-rather-th" class="question-hyperlink">Jquery/Javascript div selection via .each() gives HTMLDivElement object rather than Object object. What can be the workaround to hide the div object?</a></h1>
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<p>I have 5 div elements with attribute data-role="content"</p>
<p>I select all of them by </p>
<pre><code>a = $('div[data-role=content]')
</code></pre>
<p>It returns <code>[object HTMLDivElement]</code>.</p>
<p>To hide all the div elements, I iterate through a and hide each element</p>
<pre><code><script>$.each(a,function (index,value) {
if (value) {
alert(typeof (value));
value.hide();
}
})
</code></pre>
<p></p>
<p>But it returns an error ....</p>
<pre><code>TypeError: Result of expression 'a.hide' [undefined] is not a function
</code></pre>
<p>On the other hand, if I select a single div with the id:</p>
<pre><code>a = $('div[id=content1]')
</code></pre>
<p>it gives me an:</p>
<pre><code> [object Object]
</code></pre>
<p>The hide function <code>a.hide()</code> works in that case.</p>
<p>The question is : how can I select all the [object Object] elements at once or,
How can I convert [object HTMLDivElement] to [object Object]</p>
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<div class="user-info"><div class="user-action-time">asked <span title="2011-08-26 22:45:51Z" class="relativetime">16 mins ago</span></div><div class="user-gravatar32"><a href="/users/365374/gaurav-toshniwal"><div class=""><img src="http://www.gravatar.com/avatar/e960b340da56966e529f8b70efcba9d2?s=32&d=identicon&r=PG" alt=""></div></a></div><div class="user-details"><a href="/users/365374/gaurav-toshniwal">Gaurav Toshniwal</a><br><span class="reputation-score" title="reputation score">31</span><span title="4 bronze badges"><span class="badge3"></span><span class="badgecount">4</span></span></div></div>
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<h2>4 Answers</h2>
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<div class="post-text"><p>You're <strong><em>really</em></strong> just looking for this:</p>
<pre><code>var a = $('div[data-role=content]');
a.hide();
</code></pre>
<p>You don't need to explicitly iterate over every element in the jQuery object because <a href="http://api.jquery.com/hide" rel="nofollow"><code>.hide()</code></a> will take care of that for you.</p>
<hr>
<p><em><strong>N.B.</em></strong> <a href="http://api.jquery.com/jQuery.each" rel="nofollow"><code>$.each()</code></a> is for iterating over any array-like object. When you're already working with a jQuery object, though, use <a href="http://api.jquery.com/each" rel="nofollow"><code>.each()</code></a> instead of <code>$.each()</code>.</p>
<p>Also, it looks like you're using an attribute selector to select elements by ID. This is a silly way to select elements, as there's a much simpler — and potentially <em>much</em> faster — <a href="http://api.jquery.com/id-selector/" rel="nofollow">ID selector</a>. Here's the swap:</p>
<pre><code>$('div[id=content1]') // Change this
$('div#content1') // to this
</code></pre>
<p>You can do even better, though, because element IDs must be unique, which means that specifying an ID <em>and</em> an tag name is unnecessarily specific. So,</p>
<pre><code>$('div#content1') // Change this
$('#content1') // to this
</code></pre>
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<div class="user-info user-hover"><div class="user-action-time">edited <a href="/posts/7211274/revisions" title="show all edits to this post"><span title="2011-08-26 23:00:39Z" class="relativetime">2 mins ago</span></a></div><div class="user-gravatar32"></div><div class="user-details"><br></div></div> </td>
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<div class="user-info user-hover"><div class="user-action-time">answered <span title="2011-08-26 22:49:23Z" class="relativetime">13 mins ago</span></div><div class="user-gravatar32"><a href="/users/139010/matt-ball"><div class=""><img src="http://www.gravatar.com/avatar/0df2f3c2d3b43605889eb90231fb6884?s=32&d=identicon&r=PG" alt=""></div></a></div><div class="user-details"><a href="/users/139010/matt-ball">Matt Ball</a><br><span class="reputation-score" title="reputation score 50535">50.5k</span><span title="6 gold badges"><span class="badge1"></span><span class="badgecount">6</span></span><span title="35 silver badges"><span class="badge2"></span><span class="badgecount">35</span></span><span title="84 bronze badges"><span class="badge3"></span><span class="badgecount">84</span></span></div></div>
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<div class="post-text"><p>The value passed to <code>each</code> is the actual DIV element itself, not a jQuery wrapped instance of the DIV. DIV elements don't have a hide method. You can use @Matt's suggestion which is the correct and shortest way since the <code>.hide()</code> call will be applied to all members of the <code>$(...)</code> result set. Or turn your value into a real jQuery selector with <code>$(value).hide()</code>.</p>
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<div class="user-info user-hover"><div class="user-action-time">answered <span title="2011-08-26 22:52:51Z" class="relativetime">9 mins ago</span></div><div class="user-gravatar32"><a href="/users/76456/paul-alexander"><div class=""><img src="http://www.gravatar.com/avatar/7094bef129a85ebc3ad19703b584e934?s=32&d=identicon&r=PG" alt=""></div></a></div><div class="user-details"><a href="/users/76456/paul-alexander">Paul Alexander</a><br><span class="reputation-score" title="reputation score">9,607</span><span title="10 silver badges"><span class="badge2"></span><span class="badgecount">10</span></span><span title="48 bronze badges"><span class="badge3"></span><span class="badgecount">48</span></span></div></div>
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<div class="post-text"><p>You're looking for</p>
<pre><code>a.each(function(index, item){
$(this).hide;
});
</code></pre>
<p>That is the each that foreaches through a jquery object and actually makes "this" available.</p>
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<div class="user-info"><div class="user-action-time">answered <span title="2011-08-26 22:47:54Z" class="relativetime">14 mins ago</span></div><div class="user-gravatar32"><a href="/users/719367/matt"><div class=""><img src="http://www.gravatar.com/avatar/9def764d0d64b6c94667ac3601b022d9?s=32&d=identicon&r=PG" alt=""></div></a></div><div class="user-details"><a href="/users/719367/matt">Matt</a><br><span class="reputation-score" title="reputation score">411</span><span title="5 bronze badges"><span class="badge3"></span><span class="badgecount">5</span></span></div></div>
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<div class="post-text"><p>But the easiest way to hide each element is to call <code>hide</code> directly on the wrapped set:</p>
<pre><code>a.hide();
</code></pre>
<p>If you really want to use the <code>each</code> function, you can access the underlying object with <code>$(this)</code></p>
<pre><code><script>$.each(a,function (index,value) {
if (value) {
alert(typeof (value));
$(this).hide();
}
})
</code></pre>
<p>It will also work if you wrap the <code>value</code> parameter in a jQuery.</p>
<pre><code><script>$.each(a,function (index,value) {
if (value) {
alert(typeof (value));
$(value).hide();
}
})
</code></pre>
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<div class="user-info user-hover"><div class="user-action-time">edited <a href="/posts/7211273/revisions" title="show all edits to this post"><span title="2011-08-26 23:02:19Z" class="relativetime">26 secs ago</span></a></div><div class="user-gravatar32"></div><div class="user-details"><br></div></div> </td>
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<div class="user-info user-hover"><div class="user-action-time">answered <span title="2011-08-26 22:49:22Z" class="relativetime">13 mins ago</span></div><div class="user-gravatar32"><a href="/users/25216/andrew-shepherd"><div class=""><img src="http://www.gravatar.com/avatar/cbb750ce3bfb44081ae590348b4eefb1?s=32&d=identicon&r=PG" alt=""></div></a></div><div class="user-details"><a href="/users/25216/andrew-shepherd">Andrew Shepherd</a><br><span class="reputation-score" title="reputation score">7,771</span><span title="1 gold badge"><span class="badge1"></span><span class="badgecount">1</span></span><span title="17 silver badges"><span class="badge2"></span><span class="badgecount">17</span></span><span title="48 bronze badges"><span class="badge3"></span><span class="badgecount">48</span></span></div></div>
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<td class="comment-text"><div><span class="comment-copy">Unbelievably sloppy for someone with almost 8k rep. -1</span> – <a href="/users/139010/matt-ball" title="50535 reputation" class="comment-user">Matt Ball</a> <span class="comment-date"><span title="2011-08-26 22:49:53Z">12 mins ago</span></span> <span class="comment-delete delete-tag" title="delete this comment"></span></div></td>
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