30 lines
910 B
TypeScript
30 lines
910 B
TypeScript
import { ajaxShowMessage } from '../ajax-message.ts';
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/**
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* checks whether browser supports web storage
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*
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* @param {'localStorage' | 'sessionStorage'} type the type of storage i.e. localStorage or sessionStorage
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* @param {boolean} warn Wether to show a warning on error
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*
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* @return {boolean}
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*/
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export default function isStorageSupported (type: 'localStorage' | 'sessionStorage', warn = false): boolean {
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try {
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window[type].setItem('PMATest', 'test');
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// Check whether key-value pair was set successfully
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if (window[type].getItem('PMATest') === 'test') {
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// Supported, remove test variable from storage
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window[type].removeItem('PMATest');
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return true;
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}
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} catch (error) {
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// Not supported
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if (warn) {
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ajaxShowMessage(window.Messages.strNoLocalStorage, false);
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}
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}
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return false;
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}
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