Removing an item in HTML5 Local Storage after a period of time?

Question

I have a simple HTML5 App that I am currently working on and I\'m wondering if it\'s possible to remove a item in HTML5 Local Storage after a period of time, like: after 24 hour

Answer 1

You could store the date along with the data

//add data we are interested in tracking to an array
var values = new Array();
var oneday = new Date();
oneday.setHours(oneday.getHours() + 24); //one day from now
values.push("hello world");
values.push(oneday);
try {
    localStorage.setItem(0, values.join(";"));
} 
catch (e) { }

//check if past expiration date
var values = localStorage.getItem(0).split(";");
if (values[1] < new Date()) {
    localStorage.removeItem(0);
}