jQuery contains() Method

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jQuery contains() Method

The jQuery contains() method checks whether a DOM element is a descendant of another DOM element.


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<!DOCTYPE html> <html lang="en-US"> <head> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script> </head> <body> <h1>jQuery contains() Method</h1> <button>Click Me</button> <script> $(document).ready(function(){ $("button").click(function(){ alert($.contains(document.documentElement, document.body)); alert($.contains(document.body, document.documentElement)); }); }); </script> </body> </html>


$.contains(container, contained);

Parameter Values

containerRequiredSpecifies the DOM element that may contain the other element.
containedRequiredSpecifies the DOM element that may be contained by (a descendant of) the other element.

Return Values

trueThe DOM element is a descendant of another DOM element.
falseThe DOM element is NOT a descendant of another DOM element.


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