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jQuery is() Method
The is() method in jQuery is used to check whether one of the selected elements matches the value in parameter selectorEle.
Syntax
The syntax is as follows −
$(selector).is(selectorElement,func(index,element))
Above, selectorEle is a selector expression, element or jQuery object to match with the current set of the element. The func parameter is used to specify a function to run for the group of selected elements.
Example
Let us now see an example to implement the jQuery is() method −
<!DOCTYPE html>
<html>
<head>
<style>
div {
width:600px;
}
.demo * {
display: block;
border: 2px solid yellow;
color: blue;
padding: 10px;
margin: 10px;
}
</style>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
$("button").click(function(){
if ($("span").parent().is("li")) {
alert("Yes, li is a parent of span");
}
});
});
</script>
</head>
<body class="demo">great-great-grandparent
<div>great-grandparent
<ul>grandparent
<li>parent
<span>span</span>
</li>
</ul>
</div>
<button>Check</button>
</body>
</html>Output
This will produce the following output −
Click the “Check” button. On clicking, an alert box will be visible −
Updated on: 31-Dec-2019
191 Views
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