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

for ( var info in window.localStorage ){
 if ( info.substring( 0 , 2 ) === "QQ"){
  var data = window.localStorage.getItem( info ) );
  console.log(info);
 }

code not tested