Closure in JavaScript

A closure is created when a function remembers the variables from its outer scope, even after the outer function has finished executing.

How Closures Work

• An outer function creates a local variable.
• An inner function inside the outer function uses that variable.
• The outer function returns the inner function.
• The variable stays in memory because the inner function still needs it.

 <script>

        function bank() {

            let min_balance = 500;

            const actions = {

                deposit: function (amt) {
                    min_balance = min_balance + amt;
                },

                withdraw: function (amt) {
                    min_balance = min_balance - amt;
                },
                checkbalance: function () {
                    console.log(min_balance);

                }



            }
            return actions;
        }

        const customer1 = bank();
        customer1.deposit(100);
        customer1.checkbalance();
        customer1.withdraw(200);
        customer1.checkbalance();

    </script>