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JavaScript ​

Modern JavaScript Tutorial & Just JavaScript are great intros.

Metaphysics and JavaScript is a nice talk.

Notes ​

Code ​

js
// Click on buttons in a page
// https://twitter.com/brian_lovin/status/1240662440666222597

let buttons = document.getElementsByClassName("unfollow")

for (let [i, v] of [...buttons].entries()) {
  setTimeout(() => {
    buttons[i].click()
  }, i * 500)
}
js
// Go to specific URL
window.location.href = "https://www.google.com"
js
// Speed up video playback. Put in console of open page.
$("video").playbackRate = 2
js
// click on all the expand buttons on https://github.com/
var inputs = document.querySelectorAll("svg[aria-label=Expand]")
var buttons = Array.from(inputs).map((e) => e.parentElement.parentElement)
buttons.forEach((b) => b.click())
js
// start/close PiP video from currently open tab
var video = document.querySelectorAll("video")[0]
if (
  video !== undefined &&
  video.webkitSupportsPresentationMode &&
  typeof video.webkitSetPresentationMode === "function"
) {
  video.webkitSetPresentationMode(
    video.webkitPresentationMode === "picture-in-picture"
      ? "inline"
      : "picture-in-picture"
  )
}