Modificare il codice:
Vedi Risultato »
Prova tu stesso - ©
w3ii.com
<!DOCTYPE html> <html> <head> <script src="/lib/jquery-1.12.2.min.js"></script> <script> $(document).ready(function(){ $("button").click(function(){ $("p").before(function(n){ return "<div>The p element below has index " + n + ".</div>"; }); }); }); </script> </head> <body> <h1>This is a heading</h1> <p>This is a paragraph.</p> <p>This is another paragraph.</p> <p>This is another paragraph.</p> <button>Insert content before each p element</button> </body> </html>