kits-core/build/utils/pHook.js

Kits core module

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.useShallowEffect = exports.useIsMountedRef = undefined;

var _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"]) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }; }();

var _react = require('react');

/**
 * The custom hook be generated for resolve "Cannot update state unmounted component".
 * To resolve this warning, in promise.then, only setState if component mounted.
 * Example:
 *    const isMounted = useIsMountedRef();
 *    callApi().then((res)=> isMounted.current && setState(res))
 * @param init
 * @returns {React.MutableRefObject<boolean>}
 */
var useIsMountedRef = exports.useIsMountedRef = function useIsMountedRef() {
  var init = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;

  var isMountedRef = (0, _react.useRef)(init);
  (0, _react.useEffect)(function () {
    isMountedRef.current = true;
    return function () {
      isMountedRef.current = false;
    };
  });
  return isMountedRef;
};

/**
 * The custom hook be generated for resolve "React Hook useEffect has a missing dependency".
 * @param effectFunc
 * @param deps
 */
var useShallowEffect = exports.useShallowEffect = function useShallowEffect(effectFunc, deps) {
  var _useState = (0, _react.useState)(false),
      _useState2 = _slicedToArray(_useState, 2),
      isNeedToLoad = _useState2[0],
      setIsNeedToLoad = _useState2[1];

  (0, _react.useEffect)(function () {
    setIsNeedToLoad(true);
  }, deps);

  if (isNeedToLoad) {
    effectFunc();
    setIsNeedToLoad(false);
  }
};