localStorage and sessionStorage both extend Storage. There is no difference between them except for the intended “non-persistence” of sessionStorage. That is, the data stored in localStorage persists until explicitly deleted. Changes made are saved and available for all current and future visits to the site. For sessionStorage, changes are only available per tab. Changes made … Read more
Session storage is cleared when the tab closes. It persists over page reloads and restores. See: https://developer.mozilla.org/en-US/docs/Web/API/Window/sessionStorage Whenever a document is loaded in a particular tab in the browser, a unique page session gets created and assigned to that particular tab. That page session is valid only for that particular tab. A page session lasts … Read more
According to this site, Firefox’s and Safari’s storage limit is 5MB per domain, Internet Explorer’s limit is 10 MB per domain. However, according to this site which tests your web browser local storage capabilities, on my machine: Browser LocalStorage SessionStorage ——- ———— ————– Chrome 5M 5M Firefox 5M Unlimited IE11 5M 5M Also, note the … Read more
The solution is to stringify the object before calling setItem on the sessionStorage. var user = {‘name’:’John’}; sessionStorage.setItem(‘user’, JSON.stringify(user)); var obj = JSON.parse(sessionStorage.user);
You can use localStorage and its “storage” eventListener to transfer sessionStorage data from one tab to another. This code would need to exist on ALL tabs. It should execute before your other scripts. // transfers sessionStorage from one tab to another var sessionStorage_transfer = function(event) { if(!event) { event = window.event; } // ie suq … Read more
localStorage and sessionStorage both extend Storage. There is no difference between them except for the intended “non-persistence” of sessionStorage. That is, the data stored in localStorage persists until explicitly deleted. Changes made are saved and available for all current and future visits to the site. For sessionStorage, changes are only available per tab. Changes made … Read more
This is an extremely broad scope question, and a lot of the pros/cons will be contextual to the situation. In all cases, these storage mechanisms will be specific to an individual browser on an individual computer/device. Any requirement to store data on an ongoing basis across sessions will need to involve your application server side … Read more