The Big Web Quiz
summary
A live web quiz format with 10 questions answered via a web form (30 seconds per question) plus a live scoreboard and audience code snippets; topics include JavaScript pitfalls (hoisting causing var to be undefined, var in loops creating repeated callbacks, promises resolving before setTimeout due to microtasks), jQuery selection differences ($ vs $$), selector edge cases and accessibility issues from missing labels. Demos show requestPictureInPicture, Intl.RelativeTimeFormat, and CSS Houdini features; the site and most demos work but some require Chrome 70/71 Canary.
AI-written summary · about
chapters (11)
- 0:00Introduction
- 1:05HTML accessibility
- 2:51JavaScript console scope
- 6:58CSS selector pitfalls
- 9:12JavaScript var loop trap
- 11:26Feature detection double bang
- 13:20JavaScript prototypes
- 15:09Non-existent HTML tags
- 18:34JavaScript microtasks promises
- 22:48Picture-in-Picture
- 27:09Q&A
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