Browser APIs.

Web platform APIs beyond the DOM. Covers 14 sub-skills.

• Browser APIs · 1 of 3

  Event System & Delegation

  Which event type fires when a held keyboard key is released?

  AkeyupBkeyoffCkeyoutDkeyend

• Browser APIs · 2 of 3

  Canvas & WebGL Rendering

  What string is passed to canvas.getContext() to obtain a 2D drawing context?

  A'2d-context'B'canvas2d'C'2d'D'html2d'

• Browser APIs · 3 of 3

  DOM Manipulation

  A developer uses MutationObserver to watch an element. Which configuration observes additions and removals of the element's direct children only, ignoring deeper descendant nodes?

  A{ characterData: true }B{ attributes: true, childList: true }C{ childList: true, subtree: true }D{ childList: true, subtree: false }