Add class attributes to different elements. - Javascript jQuery

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Description

Add class attributes to different elements.

Demo Code

ResultView the demo in separate window 

<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
    $("button").click(function(){
        $("#div1").addClass("important blue");
    });// w  w  w.  java 2  s .  c  o m
});
</script>
<style>
.important {
    font-weight: bold;
    font-size: xx-large;
}

.blue {
    color: blue;
}
</style>
</head>
<body>

<div id="div1">This is some text.</div>
<div id="div2">This is some text.</div>
<br>

<button>Add classes to first div element</button>

</body>
</html>

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