42 lines
1.1 KiB
JavaScript
42 lines
1.1 KiB
JavaScript
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// localStorage
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(function() {
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function isSupported() {
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var item = 'localStoragePollyfill';
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try {
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localStorage.setItem(item, item);
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localStorage.removeItem(item);
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sessionStorage.setItem(item, item);
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sessionStorage.removeItem(item);
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return true;
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} catch (e) {
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return false;
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}
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}
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if (!isSupported()) {
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try {
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Storage.prototype._data = {};
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Storage.prototype.setItem = function(id, val) {
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this._data[id] = String(val);
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return this._data[id];
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};
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Storage.prototype.getItem = function(id) {
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return this._data.hasOwnProperty(id) ? this._data[id] : undefined;
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};
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Storage.prototype.removeItem = function(id) {
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return delete this._data[id];
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};
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Storage.prototype.clear = function() {
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this._data = {};
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return this._data;
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};
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} catch (e) {
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console.error('localStorage pollyfill error: ', e);
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}
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}
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}());
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