Mini debounce

debounce.js

/* https://gist.github.com/nmsdvid/8807205#gistcomment-3168449 */

var debounce = (callback, wait = 250) => {
  let timer;
  let last_call = 0;
  return (...args) => {
      clearTimeout(timer);
      const now = Date.now(), time_from_last_call = now - last_call;

      if (time_from_last_call > wait) {
          last_call = now;
          callback(...args);
      }
      else {
          timer = setTimeout(() => {
              last_call = now;
              callback(...args);
          }, wait);
      }
  };
}

this.debounce = debounce;

if (typeof module !== 'undefined' && module !== null && module.exports) {
  module.exports = debounce;
}