Simple debounce and throttle with proper context binding

debounce.js

function debounce(fn, wait) {
  let t
  return function () {
    clearTimeout(t)
    t = setTimeout(() => fn.apply(this, arguments), wait)
  }
}

throttle.js

function throttle(fn, wait) {
  let t
  return function () {
    if (t == null) {
      fn.apply(this, arguments)
      t = setTimeout(() => (t = undefined), wait)
    }
  }
}