Hacking Javascript |

piggy-bank.js

function PiggyBank(){
  let money = [];
  return {
    store: function(index, value){
      money[index] = value;
    },
    push: function(value){
      money.push(value);
    }
  }
}

let sharedPiggyBank = PiggyBank();

// Mom gives the sharedPiggyBank to Bob & Alice
// But, there's a weakness in this code which allows direct access to the money Array.
// Can you spot it?