@mskcc/carbon-react/lib/internal/useEffectOnce.js

Carbon react components for the MSKCC DSM

/**
 * MSKCC 2021, 2024
 */

'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var React = require('react');

/**
 * A custom hook which will call the given callback exactly once when your
 * component is initially rendered and effects are first called
 *
 * @param {Function} callback
 */
function useEffectOnce(callback) {
  const savedCallback = React.useRef(callback);
  const effectGuard = React.useRef(false);
  React.useEffect(() => {
    savedCallback.current = callback;
  });
  React.useEffect(() => {
    if (effectGuard.current !== true) {
      effectGuard.current = true;
      savedCallback.current();
    }
  }, []);
}

exports.useEffectOnce = useEffectOnce;