46 lines
1.1 KiB
JavaScript
46 lines
1.1 KiB
JavaScript
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export default function(
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scheme = '',
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storage = window.localStorage,
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encode = JSON.stringify,
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decode = JSON.parse
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) {
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const prefix = `${scheme}:`;
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return {
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getValue: function(path) {
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let value = storage.getItem(`${prefix}${path}`);
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if (typeof value !== 'string') {
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value = '""';
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}
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try {
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value = decode(value);
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} catch (e) {
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value = '';
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}
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return value;
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},
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setValue: function(path, value) {
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if (value === null) {
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return this.removeValue(path);
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}
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try {
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value = encode(value);
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} catch (e) {
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value = '""';
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}
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return storage.setItem(`${prefix}${path}`, value);
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},
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removeValue: function(path) {
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return storage.removeItem(`${prefix}${path}`);
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},
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all: function() {
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return Object.keys(storage).reduce((prev, item, i, arr) => {
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if (item.indexOf(`${prefix}`) === 0) {
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const key = item.substr(prefix.length);
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prev[key] = this.getValue(key);
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}
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return prev;
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}, {});
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},
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};
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}
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