IE8 and localStorage support [duplicate]

Answer 1

Here is a famous localStorage plugin https://github.com/marcuswestin/store.js/ you can add, edit and delete datas very easily and the most important is you can use localstorage in IE6+.

store.js uses localStorage when available, and falls back on the userData behavior in IE6 and IE7. No flash to slow down your page load. No cookies to fatten your network requests. Ex :

store.set('user', { name: 'marcus', likes: 'javascript' })

Answer 2

You can try to set and read localStorage.

Some browsers return a security error if cookies are disabled or you are working with file: protocol.

function hasStorage(){
    try{
        localStorage.setItem('test', '7');
        if(localStorage.getItem('test')=== '7'){
            localStorage.removeItem('test');
            return true;
        }
    }
    catch(er){}
    return false;
}

alert(hasStorage())

Answer 3

You can use Modernizr:

if (Modernizr.localstorage) {
  // localStorage is available
}