@matt-dunn/react-wireframes/lib/useLocalStorage.js

React component to annotate your components — useful for prototypes and proof of concepts

"use strict";

require("core-js/modules/es.symbol");

require("core-js/modules/es.symbol.description");

require("core-js/modules/es.symbol.iterator");

require("core-js/modules/es.array.from");

require("core-js/modules/es.array.iterator");

require("core-js/modules/es.array.slice");

require("core-js/modules/es.function.name");

require("core-js/modules/es.object.to-string");

require("core-js/modules/es.regexp.to-string");

require("core-js/modules/es.string.iterator");

require("core-js/modules/web.dom-collections.iterator");

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

var _react = require("react");

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

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."); }

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 _iterableToArrayLimit(arr, i) { if (typeof Symbol === "undefined" || !(Symbol.iterator in Object(arr))) return; 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"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }

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

function useLocalStorage(key, initial) {
  var _useState = (0, _react.useState)(function () {
    try {
      var storageValue = window.localStorage.getItem(key);
      return storageValue ? JSON.parse(storageValue) : initial;
    } catch (ex) {
      /* istanbul ignore next */
      console.error(ex); // eslint-disable-line no-console

      /* istanbul ignore next */

      return initial;
    }
  }),
      _useState2 = _slicedToArray(_useState, 2),
      value = _useState2[0],
      setValue = _useState2[1];

  return [value, function (newValue) {
    setValue(newValue);

    try {
      if (newValue !== undefined) {
        window.localStorage.setItem(key, JSON.stringify(newValue));
      } else {
        window.localStorage.removeItem(key);
      }
    } catch (ex) {
      /* istanbul ignore next */
      console.error(ex); // eslint-disable-line no-console
    }
  }];
}