Still new at this, have been searching and searching. I see some answers but the code looks a bit different from mine using var and a few others. I found this code to use.

function throttle(cb, delay = 2000) {
  let shouldWait = false

  return (...args) => {
    if (shouldWait) return

    cb (...args)
    shouldWait = true

    setTimeout(() => {
      shouldWait = false
    }, delay)
  }
}

To my understanding that part is correct. I have the basic movement keys. I only want to throttle the jump keypress. Case 87: any help would be greatly appreciated. Trying to avoid players tapping the jump button to fly everywhere. I've tried other alternatives but throttling would solve my problem.

addEventListener('keydown', ({ keyCode }) => {
  if (game.disableUserInput) return
  var lastEnter = null;

  switch (keyCode) {
    case 65:
      console.log('left')
      keys.left.pressed = true
      lastKey = 'left'

      break

    case 83:
      console.log('down')
      break

    case 68:
      console.log('right')
      keys.right.pressed = true
      lastKey = 'right'

      break

    case 87: // W
      console.log('up')    
      if (event.repeat) { return }
      player.velocity.y -= 25           

      break