Remove object key from localStorage object variable without removing from localStorage

Question

I need to remove object key from localStorage object variable without removing key from localStorage

let obj = localStorage;
let keys = Object.keys(localStorage).sort(function(a, b) {return a - b;});

for(let i = 0; i < keys.length; ++i){
    if (isNaN(keys[i])) {
        delete obj[keys[i]];
        keys.splice(i,1);
    }
}

code above removes non-numeric object key from obj variable, but also key is removing from localStorage

How to remove key from localStorage object variable and keep that key in localStorage?

Answer 1

What you’re doing here is you’re copying the reference of the localStorage object and working on the localStorage itself What you can do is instead of getting localStorage like this:

const obj = localStorage;

Do like this:

const obj = {...localStorage};

So what you’re doing here you’re copying the object by value and not by reference