source: imaps-frontend/node_modules/react-use/lib/useLocalStorage.js

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Last change on this file was d565449, checked in by stefan toskovski <stefantoska84@…>, 4 weeks ago

Update repo after prototype presentation

  • Property mode set to 100644
File size: 3.2 KB
RevLine 
[d565449]1"use strict";
2Object.defineProperty(exports, "__esModule", { value: true });
3var react_1 = require("react");
4var util_1 = require("./misc/util");
5var useLocalStorage = function (key, initialValue, options) {
6 if (!util_1.isBrowser) {
7 return [initialValue, util_1.noop, util_1.noop];
8 }
9 if (!key) {
10 throw new Error('useLocalStorage key may not be falsy');
11 }
12 var deserializer = options
13 ? options.raw
14 ? function (value) { return value; }
15 : options.deserializer
16 : JSON.parse;
17 // eslint-disable-next-line react-hooks/rules-of-hooks
18 var initializer = react_1.useRef(function (key) {
19 try {
20 var serializer = options ? (options.raw ? String : options.serializer) : JSON.stringify;
21 var localStorageValue = localStorage.getItem(key);
22 if (localStorageValue !== null) {
23 return deserializer(localStorageValue);
24 }
25 else {
26 initialValue && localStorage.setItem(key, serializer(initialValue));
27 return initialValue;
28 }
29 }
30 catch (_a) {
31 // If user is in private mode or has storage restriction
32 // localStorage can throw. JSON.parse and JSON.stringify
33 // can throw, too.
34 return initialValue;
35 }
36 });
37 // eslint-disable-next-line react-hooks/rules-of-hooks
38 var _a = react_1.useState(function () { return initializer.current(key); }), state = _a[0], setState = _a[1];
39 // eslint-disable-next-line react-hooks/rules-of-hooks
40 react_1.useLayoutEffect(function () { return setState(initializer.current(key)); }, [key]);
41 // eslint-disable-next-line react-hooks/rules-of-hooks
42 var set = react_1.useCallback(function (valOrFunc) {
43 try {
44 var newState = typeof valOrFunc === 'function' ? valOrFunc(state) : valOrFunc;
45 if (typeof newState === 'undefined')
46 return;
47 var value = void 0;
48 if (options)
49 if (options.raw)
50 if (typeof newState === 'string')
51 value = newState;
52 else
53 value = JSON.stringify(newState);
54 else if (options.serializer)
55 value = options.serializer(newState);
56 else
57 value = JSON.stringify(newState);
58 else
59 value = JSON.stringify(newState);
60 localStorage.setItem(key, value);
61 setState(deserializer(value));
62 }
63 catch (_a) {
64 // If user is in private mode or has storage restriction
65 // localStorage can throw. Also JSON.stringify can throw.
66 }
67 }, [key, setState]);
68 // eslint-disable-next-line react-hooks/rules-of-hooks
69 var remove = react_1.useCallback(function () {
70 try {
71 localStorage.removeItem(key);
72 setState(undefined);
73 }
74 catch (_a) {
75 // If user is in private mode or has storage restriction
76 // localStorage can throw.
77 }
78 }, [key, setState]);
79 return [state, set, remove];
80};
81exports.default = useLocalStorage;
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