HTML5 JS / Local database [closed]

Question

I'm looking for a way to store data locally, no matter the type sqlite database or within a file...

I've saw webSql, file Api, localstorage...

My constraints are :

• No expiration for data, even after clearing the cache (so no localstorage)
• Read/write
• Access without a webserver (no http:// but file://)
• Manipulation with HTML5 or JS
• Optional : working with firefox

Is it possible ?

Answer 1

You can try with the indexedDB?

https://developer.mozilla.org/en-US/docs/IndexedDB

http://caniuse.com/#feat=indexeddb

• No expiration for data, even after clearing the cache (so no localstorage) => OK (The user can delete the db, but with a different operation than clearing cache)
• Read/write => OK
• Access without a webserver (no http:// but file://) => OK
• Manipulation with HTML5 or JS => OK (Check the javascript API)
• Optional : working with firefox => OK