quasar/src/utils/debounce/debounce.js

Build high-performance VueJS user interfaces (SPA, PWA, SSR, Mobile and Desktop) in record time

// oxlint-disable-next-line default-param-last
export default function debounce(fn, wait = 250, immediate) {
  let timer = null

  function debounced(/* ...args */) {
    const args = arguments

    const later = () => {
      timer = null
      if (immediate !== true) {
        fn.apply(this, args)
      }
    }

    if (timer !== null) {
      clearTimeout(timer)
    } else if (immediate === true) {
      fn.apply(this, args)
    }

    timer = setTimeout(later, wait)
  }

  debounced.cancel = () => {
    if (timer !== null) clearTimeout(timer)
  }

  return debounced
}