Wes Bos' 30 days Vanilla JS challenge.

No frameworks, no compilers, no fuss.

Day 01: Drum Kit.

• Element.addEventLister()
• Element.classList
  • .add()
  • .remove()
• document.querySelector()
• document.querySelectorAll()
• Event.keyCode
• audio
  • .play()
  • .currentTime
• Array.prototype.forEach