JavaScript node.contains() Method

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JavaScript node.contains() Method

The node.contains() method indicates whether a node is a descendant of a specified node.


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<!DOCTYPE html> <html> <body> <p><span>span</span> inside paragraph</p> <button onclick="myFunction()">Click Me</button> <script> var p = document.getElementsByTagName("p")[0]; var span = document.getElementsByTagName("span")[0]; function myFunction(){ alert(p.contains(span)); } </script> </body> </html>



Parameter Values

otherNodeRequiredA node to check whether it is a descendant of a given node.

Return Values

trueIf the otherNode is a descendant of a given node.
falseIf the otherNode is not a descendant of a given node.


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