Challenge: Commission Calculator

You are developing a program for a bank that needs to calculate commission based on the transaction type. Your task is to write a switch statement that will output the commission based on the type of incoming transaction.

Commission rates based on transaction type:

Payment : 0.5%;
Transfer : 1.2%;
Withdrawal : 2.0%;
Deposit : 0.0% (no commission).

Replace ___ with the necessary code to compile it. Don't hesitate to check the hint and solution to understand the task better.


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let transactionType: string = "Transfer"; // You can change the operation type
let commission: number;

switch (transactionType) {
    case ___:
        ___ = 0.5;
        break;
    case ___:
        ___ = ___;
        break;
    case ___:
        ___ = ___;
        break;
    case ___:
        ___ = ___;
        break;
    ___:
        ___ = -1; // Handle unknown transaction types
}

console.log(`Commission for ${transactionType}: ${commission}%`);

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Introduction to TypeScript