Local Storage:
- simply provides a key-value mapping. Present implementations only support string-to-string mappings, so you need to serialize and de-serialize other data structures.
- Local storage limits to 5MB of usage only
- By exceeding quota it will return "
QUOTA_EXCEEDED_ERR"
Imp things:
length,key,getItem,setItem,removeItem,clear
To set the item in local storage
localstorage.setItem(key, value);
ex: localstorage.setItem("uname", 'kongaraju'); //represents localStorage.key(0)
To store Objects in local storage
localStorage.setItem("Uinfo", JSON.stringify({ 'Fname' : 'Raju' , 'Lname' : 'konga' })); //key index 1
To get the item from LocalStorage
localstorage.getItem(key); // By Key
localStorage.key(index); //BY Index
ex: var UserName=localstorage.getItem("uname");
var UserName=localStorage.getItem(localStorage.key(index));
//return "kongaraju"
To get the objects from local storage
var info=JSON.parse(localSorage.getItem('Uinfo'));
var FirstName= info.Fname
var LastName= info.Lname
To get total length of local storage
localStorage.length
To get list of local Storage items
for(var i=o; i<localstorage.length; i++)
{
$(list).append(localStorage.getItem(localStorage.key(i)));
}
remove the item
localStorage.removeItem(key);
ex: localStorage.removeItem('uname');
To Clear the localstorage
localStorage.clear(); // it clears total localstorage of app
In other way
localStorage["uname"]='kongraju';
var UserName = localstorage['uname'];
Session Storage:
- The sessionStorage object is equal to the localStorage object, except that it stores the data for only one session. The data is deleted when the user closes the browser window.
