← Stop Writing JavaScript to Open Dialogs. `commandfor` Fixes It.Quiz
command / commandfor — the Invoker Commands API
Checks whether the declarative dialog/popover attributes, the built-in command names, and the custom-command event actually stuck.
questions8
pass mark70%
resultsat the end
No account needed. Answer all 8 questions, then see your score with every answer explained and a reference to the spec or MDN — pass and you can claim a certificate.