17-target-even-elements-using-jquery.html

<!-- Target Even Elements Using jQuery
You can also target elements based on their positions using :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.

- All the target elements that jQuery considers to be even should shake.
- You should use the :even selector to modify these elements.
- You should only use jQuery to add these classes to the element.
-->
<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");
        $(".target:even").addClass("animated shake");
    });
</script>

<!-- Only changed 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>