Debounce in JavaScript

const debounce = (func, duration = 2000) => {
  let timeout;

  return function (...args) {
    const effect = () => {
      timeout = null;
      return func.apply(this, args);
    };

    clearTimeout(timeout);
    timeout = setTimeout(effect, duration);
  };
};

export default debounce;

import debounce from 'utils/debounce';

const handler = debounce(
  () => console.log('I will print after 4 seconds'),
  4000,
);