Editați codul:
Consultați Rezultatul »
Încercați-vă singur - ©
w3ii.com
<!DOCTYPE html> <html> <body> <h1>With "use strict":</h1> <h3>Deleting a variable (or object) is not allowed.</h3> <p>Activate debugging in your browser (F12) to see the error report.</p> <script> "use strict"; var x = 3.14; delete x; // This will cause an error </script> </body> </html>