When should I use html5 sessionStorage?

Question

I\'ve learned difference between sessionStorage (persist during session) and localStorage (persist forever if not deleted).

I can see that

Answer 1

The main reason to use sessionStorage is for cases where if your user were to open the same page twice in two different tabs, you'd want separate storage areas for those two tabs. For example, consider a site where you're buying a ticket (and you can only buy one ticket, like an airline ticket flow, as opposed to a case with a shopping cart). If the user tries to buy two tickets in two different tabs, you wouldn't want the two sessions interfering with each other. sessionStorage lets you track those session across multiple page loads independently.