Given an HTML element and the task is to add and remove multiple classes from it using JQuery.
Approach:
- First select the element to which multiple classes will be added.
- Then use addClass() method to add multiple classes to the element and removeClass() method to remove multiple classes.
Example 1: This example add two classes color and fontWeight to the selected element using addClass() method.
<!DOCTYPE HTML> <html>
<head>
<title>
How to Add and Remove multiple classes
</title>
<script src =
</script>
<style>
.color {
color: red;
}
.fontWeight {
font-weight: bold;
}
</style>
</head>
<body style = "text-align:center;">
<h1 style = "color:green;" >
GeeksForGeeks
</h1>
<p id = "GFG_UP" style = "font-size: 19px;">
</p>
<button onClick = "GFG_Fun()">
click here
</button>
<p id = "GFG_DOWN" style =
"color: green; font-size: 24px; font-weight: bold;">
</p>
<script>
$('#GFG_UP').text("Click on button to add multiple"
+ " classes to this element");
function GFG_Fun() {
$("#GFG_UP").addClass("color fontWeight");
$('#GFG_DOWN').text("color and fontWeight,"
+ " Both classes added");
}
</script>
</body>
</html>
|
Output:
-
Before clicking on the button:
-
After clicking on the button:
Example 2: This example remove two classes color and fontWeight from the selected element using removeClass() method.
<!DOCTYPE HTML> <html>
<head>
<title>
How to Add and Remove multiple classes
</title>
<script src =
</script>
<style>
.color {
color: red;
}
.fontWeight {
font-weight: bold;
}
</style>
</head>
<body style = "text-align:center;">
<h1 style = "color:green;" >
GeeksForGeeks
</h1>
<p id = "GFG_UP" class = "color fontWeight"
style = "font-size: 19px;">
</p>
<button onClick = "GFG_Fun()">
click here
</button>
<p id = "GFG_DOWN" style =
"color: green; font-size: 24px; font-weight: bold;">
</p>
<script>
$('#GFG_UP').text("Click on button to remove"
+ " multiple classes to this element");
function GFG_Fun() {
$("#GFG_UP").removeClass("color fontWeight");
$('#GFG_DOWN').text("color and fontWeight,"
+ " Both classes removed");
}
</script>
</body>
</html>
|
Output:
-
Before clicking on the button:
-
After clicking on the button:
jQuery is an open source JavaScript library that simplifies the interactions between an HTML/CSS document, It is widely famous with it’s philosophy of “Write less, do more”.
You can learn jQuery from the ground up by following this jQuery Tutorial and jQuery Examples.