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jQuery closest() Method

jQuery closest() method in jQuery is used to returns the first ancestor of the selected element and an ancestor is a parent, grandparent, great-grandparent, and so on.

Syntax:

Return the first ancestor of the selected element:	$(selector).closest(filter)
Return the first ancestor using a DOM context to look up the DOM tree within:	$(selector).closest(filter,context)

Parameter Values

Parameter	Description
filter	It is a required parameter and is used to specifies a selector expression, element or jQuery object to narrow down the ancestor search
context	It is an Optional parameter and is used to a DOM element within which a matching element may be found

Here is an Example of jQuery closest() Method:


<html>
<head>
<style>
.ancestors * { 
display: block;
border: 2px solid dodgerblue;
color: lightgrey;
padding: 5px;
margin: 15px;
}
</style>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
$("span").closest("ul").css({"color": "#000", "border": "2px solid #df65f7"});
});
</script>
</head>
<body>
<div class="ancestors">
<div style="width:500px;">div (great-grandparent)
<ul>ul (second ancestor - second grandparent) 
<ul>ul (first ancestor - first grandparent)
<li>li (direct parent)
<span>span</span>
</li>
</ul>
</ul>   
</div>
</div>
</body>
</html>

Output:

div (great-grandparent)

li (direct parent) span

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