let a4 = {
hello: 'world',
hi: 'mahai'
}
localStorage.setItem("a4", JSON.stringify("a4"));
a4 = JSON.parse(localStorage.getItem("a4"));
console.log(localStorage.getItem(a4));
a4 = JSON.parse(localStorage.getItem("a4"));
console.log(localStorage.getItem(a4));
console.log(localStorage.getItem(JSON.parse(localStorage.getItem("a4"))));