html5 window.localStorage.getItemItem get keys that start with

Question

How could I use

window.localStorage.getItem();

to specify items in localstarage that start with the string \'QQ\'. In my case the key

Answer 1

Came across this and here is a solution in es6 :

let search = 'QQ';
let values = Object.keys(localStorage)
                   .filter( (key)=> key.startsWith(search) )
                   .map( (key)=> localStorage[key] );