How can we add and remove data from local storage?

Set data as follow:-

localStorage.setItem("Key", value);

and to get Item from local storage

localStorage.getItem("key");

Also check if browser supports local storage before using it. It will look something like this:-

if(Storage == undefined || typeOf(Storage) == "undefined")

{

alert("Storage is not supported")

}

else

{

// Get or Set Item

}