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<!DOCTYPE html> <html lang="en-US"> <body> <p><span>span</span> inside paragraph</p> <p>Click on the button to check whether paragraph contains span.</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>
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