@ucloud-fe/react-components/lib/hooks/useIsInitial.js

UCloud react components

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

var _typeof = require("@babel/runtime/helpers/typeof");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

var _newArrowCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/newArrowCheck"));

var _react = _interopRequireWildcard(require("react"));

var _this = void 0;

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

var useIsInitial = function useIsInitial() {
  var _this2 = this;

  (0, _newArrowCheck2.default)(this, _this);
  var isFirst = (0, _react.useRef)(true);
  (0, _react.useEffect)(function () {
    var _this3 = this;

    (0, _newArrowCheck2.default)(this, _this2);
    setTimeout(function () {
      (0, _newArrowCheck2.default)(this, _this3);
      return isFirst.current = false;
    }.bind(this), 0);
  }.bind(this), []);
  return isFirst.current;
}.bind(void 0);

var _default = useIsInitial;
exports.default = _default;