Browser APIs.

Web platform APIs beyond the DOM. Covers 14 topics.

• 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 options object reports nodes added to or removed from that element, and reports no changes to its grandchildren or its attributes?

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