freeCodeCamp/curriculum/challenges/english/03-front-end-libraries/jquery/target-elements-by-id-using...

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---
id: bad87fee1348bd9aeda08826
title: Target Elements by id Using jQuery
challengeType: 6
forumTopicId: 18317
required:
- link: 'https://cdnjs.cloudflare.com/ajax/libs/animate.css/3.2.0/animate.css'
dashedName: target-elements-by-id-using-jquery
---
# --description--
You can also target elements by their id attributes.
First target your `button` element with the id `target3` by using the `$("#target3")` selector.
Note that, just like with CSS declarations, you type a `#` before the id's name.
Then use jQuery's `.addClass()` function to add the classes `animated` and `fadeOut`.
Here's how you'd make the `button` element with the id `target6` fade out:
```js
$("#target6").addClass("animated fadeOut");
```
# --hints--
You should select the `button` element with the `id` of `target3` and use the jQuery `addClass()` function to give it the class of `animated`.
```js
assert($('#target3').hasClass('animated'));
```
You should target the element with the id `target3` and use the jQuery `addClass()` function to give it the class `fadeOut`.
```js
assert(
($('#target3').hasClass('fadeOut') || $('#target3').hasClass('fadeout')) &&
code.match(/\$\(\s*.#target3.\s*\)/g)
);
```
You should only use jQuery to add these classes to the element.
```js
assert(!code.match(/class.*animated/g));
```
# --seed--
## --seed-contents--
```html
<script>
$(document).ready(function() {
$("button").addClass("animated bounce");
$(".well").addClass("animated shake");
});
</script>
<!-- Only change code above this line -->
<div class="container-fluid">
<h3 class="text-primary text-center">jQuery Playground</h3>
<div class="row">
<div class="col-xs-6">
<h4>#left-well</h4>
<div class="well" id="left-well">
<button class="btn btn-default target" id="target1">#target1</button>
<button class="btn btn-default target" id="target2">#target2</button>
<button class="btn btn-default target" id="target3">#target3</button>
</div>
</div>
<div class="col-xs-6">
<h4>#right-well</h4>
<div class="well" id="right-well">
<button class="btn btn-default target" id="target4">#target4</button>
<button class="btn btn-default target" id="target5">#target5</button>
<button class="btn btn-default target" id="target6">#target6</button>
</div>
</div>
</div>
</div>
```
# --solutions--
```html
<script>
$(document).ready(function() {
$("button").addClass("animated bounce");
$(".well").addClass("animated shake");
$("#target3").addClass("animated fadeOut");
});
</script>
<!-- Only change code above this line -->
<div class="container-fluid">
<h3 class="text-primary text-center">jQuery Playground</h3>
<div class="row">
<div class="col-xs-6">
<h4>#left-well</h4>
<div class="well" id="left-well">
<button class="btn btn-default target" id="target1">#target1</button>
<button class="btn btn-default target" id="target2">#target2</button>
<button class="btn btn-default target" id="target3">#target3</button>
</div>
</div>
<div class="col-xs-6">
<h4>#right-well</h4>
<div class="well" id="right-well">
<button class="btn btn-default target" id="target4">#target4</button>
<button class="btn btn-default target" id="target5">#target5</button>
<button class="btn btn-default target" id="target6">#target6</button>
</div>
</div>
</div>
</div>
```