3.4 KiB
3.4 KiB
id | title | required | challengeType | |||
---|---|---|---|---|---|---|
bad87fee1348bd9aed008826 | Target Even Elements Using jQuery |
|
6 |
Description
:odd
or :even
selectors.
Note that jQuery is zero-indexed which means the first element in a selection has a position of 0. This can be a little confusing as, counter-intuitively, :odd
selects the second element (position 1), fourth element (position 3), and so on.
Here's how you would target all the odd elements with class target
and give them classes:
$(".target:odd").addClass("animated shake");
Try selecting all the even target
elements and giving them the classes of animated
and shake
. Remember that even refers to the position of elements with a zero-based system in mind.
Instructions
Tests
tests:
- text: All of the <code>target</code> elements that jQuery considers to be even should shake.
testString: assert($('.target:even').hasClass('animated') && $('.target:even').hasClass('shake'), 'All of the <code>target</code> elements that jQuery considers to be even should shake.');
- text: You should use the <code>:even</code> selector to modify these elements.
testString: assert(code.match(/\:even/g), 'You should use the <code>:even</code> selector to modify these elements.');
- text: Only use jQuery to add these classes to the element.
testString: assert(code.match(/\$\(".target:even"\)/g) || code.match(/\$\('.target:even'\)/g) || code.match(/\$\(".target"\).filter\(":even"\)/g) || code.match(/\$\('.target'\).filter\(':even'\)/g), 'Only use jQuery to add these classes to the element.');
Challenge Seed
<script>
$(document).ready(function() {
$("#target1").css("color", "red");
$("#target1").prop("disabled", true);
$("#target4").remove();
$("#target2").appendTo("#right-well");
$("#target5").clone().appendTo("#left-well");
$("#target1").parent().css("background-color", "red");
$("#right-well").children().css("color", "orange");
$("#left-well").children().css("color", "green");
$(".target:nth-child(2)").addClass("animated bounce");
});
</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>
Solution
// solution required