jQuery is an open-source JavaScript library that simplifies the interactions between an HTML/CSS document, or more precisely the Document Object Model (DOM), and JavaScript. Elaborating the terms, it simplifies HTML document traversing and manipulation, browser event handling, DOM animations, Ajax interactions, and cross-browser JavaScript development.
jQuery element selector is used to select and modify HTML elements based on the element name.
Syntax:
$("element_name") Example 1: This example selects the “h2” element and adds a border to it.
HTML
<!DOCTYPE html><html>
<head>
<script src=
</script>
<script>
$(document).ready(function () {
$("h2").css("border",
"5px solid green");
});
</script>
</head>
<body>
<h2>GeeksForGeeks</h2>
</body>
</html>
|
Output:
Example 2: This example changes text color of “h2” element on button click.
HTML
<!DOCTYPE html><html>
<head>
<script src=
</script>
<script>
$(document).ready(function () {
$("button").click(function () {
$("h2").css("color",
"green");
});
});
</script>
</head>
<body>
<h2>GeeksForGeeks</h2>
<button>Change text color</button>
</body>
</html>
|
Output:
Supported Browsers:
- Google Chrome 90.0+
- Internet Explorer 9.0
- Firefox 3.6
- Safari 4.0
- Opera 10.5