refun/web/map-with-props-memo.js

A collection of React Hook-enabled functions that compose harmoniously with each other. Similar to `recompose`, but:

import { useRef } from 'react';
import { EMPTY_OBJECT } from 'tsfn';
import { shallowEqualByKeys } from './utils';
export var mapWithPropsMemo = function mapWithPropsMemo(getFn, watchKeys) {
  return function (props) {
    var prevProps = useRef(EMPTY_OBJECT);
    var prevResult = useRef(EMPTY_OBJECT);

    if (prevResult.current === EMPTY_OBJECT || !shallowEqualByKeys(prevProps.current, props, watchKeys)) {
      prevProps.current = props;
      prevResult.current = getFn(props);
    }

    return Object.assign({}, props, prevResult.current);
  };
};
//# sourceMappingURL=map-with-props-memo.js.map