@carbon/ibm-products/lib/global/js/utils/debounce.js

Carbon for IBM Products

/**
 * Copyright IBM Corp. 2020, 2025
 *
 * This source code is licensed under the Apache-2.0 license found in the
 * LICENSE file in the root directory of this source tree.
 */

'use strict';

const debounce = function (func, delay) {
  let leading = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;
  let timeout;
  return function () {
    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }
    if (timeout) {
      clearTimeout(timeout);
    }
    if (leading && !timeout) {
      func(...args);
    }
    timeout = setTimeout(() => {
      timeout = null;
      if (!leading) {
        func(...args);
      }
    }, delay);
  };
};

exports.debounce = debounce;