Wrap a <b> element around the content of each p element
<!DOCTYPE html> <html> <head> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"> </script>//from w ww . java2 s . c o m <script> $(document).ready(function(){ $("button").click(function(){ $("p").wrapInner(function(){ return "<b></b>" }); }); }); </script> </head> <body> <p>This is a paragraph.</p> <p>This is another paragraph.</p> <button>wrap</button> </body> </html>