How to implement Stack Overflow textarea that will restore your typing when asking a question after you close and reopen it

Implement it with HTML5 storage? Constantly upload to server session?

Which is a better a开发者_JS百科pproach?

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HTML5 storage? Yes you can, but it won't be supported by old browsers. Another ways of doing that are:

1. Store draft into cookies every n seconds.
2. Store draft at server side using ajax requests every n seconds.

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Or you could use one of these frameworks:

• PersistJS
• Sammy
• and many others (a quick search in github and google code should give you other anwsers)

They provide a persistent storage API in the browser, with various implementations/fallback dependening on the browser (cookie, localStorage, jquery data, adobe flash, google gears...)