@geist-ui/core/dist/use-current-state/index.js

Modern and minimalist React UI library.

'use strict';

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

var react = require('react');

function _slicedToArray(arr, i) {
  return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest();
}

function _arrayWithHoles(arr) {
  if (Array.isArray(arr)) return arr;
}

function _iterableToArrayLimit(arr, i) {
  var _i = arr == null ? null : typeof Symbol !== "undefined" && arr[Symbol.iterator] || arr["@@iterator"];

  if (_i == null) return;
  var _arr = [];
  var _n = true;
  var _d = false;

  var _s, _e;

  try {
    for (_i = _i.call(arr); !(_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"] != null) _i["return"]();
    } finally {
      if (_d) throw _e;
    }
  }

  return _arr;
}

function _unsupportedIterableToArray(o, minLen) {
  if (!o) return;
  if (typeof o === "string") return _arrayLikeToArray(o, minLen);
  var n = Object.prototype.toString.call(o).slice(8, -1);
  if (n === "Object" && o.constructor) n = o.constructor.name;
  if (n === "Map" || n === "Set") return Array.from(o);
  if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);
}

function _arrayLikeToArray(arr, len) {
  if (len == null || len > arr.length) len = arr.length;

  for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];

  return arr2;
}

function _nonIterableRest() {
  throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
}

var useCurrentState = function useCurrentState(initialState) {
  var _useState = react.useState(function () {
    return typeof initialState === 'function' ? initialState() : initialState;
  }),
      _useState2 = _slicedToArray(_useState, 2),
      state = _useState2[0],
      setState = _useState2[1];

  var ref = react.useRef(initialState);
  react.useEffect(function () {
    ref.current = state;
  }, [state]);

  var setValue = function setValue(val) {
    var result = typeof val === 'function' ? val(ref.current) : val;
    ref.current = result;
    setState(result);
  };

  return [state, setValue, ref];
};

var useCurrentState$1 = useCurrentState;

exports["default"] = useCurrentState$1;