javascriptarraysjsonobjectlocal-storage

I want to delete specific object from localstorage

Normally there is a function localstorage.remove(key). But i want to delete an index within a key. I am saving the object like that:

cart[idstr] = [qty, name];

localStorage.setItem('cart', JSON.stringify(cart));

I want to delete a specific cart[idstr] Sample console.log(cart) is giving:

{pr22: Array(2), pr19: Array(2), pr21: Array(2)}

Suppose i want to delete pr19. What should i do?

Solution

  • It is not possible to do it directly.

      • First you have to get the saved item from storage
      • Delete the property you want on this item
      • Update the item on storage
    let cart= JSON.parse( localStorage.getItem('cart') );
delete cart.pr19;
localStorage.setItem('cart', JSON.stringify( cart ) );