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Exercise 5

Create a MathUtils class with static methods add, subtract, multiply, and divide. These methods should perform basic arithmetic operations.

class MathUtils {
  // your code here
}

console.log(MathUtils.add(5, 3));       // 8
console.log(MathUtils.subtract(10, 4)); // 6
console.log(MathUtils.multiply(6, 7));  // 42
console.log(MathUtils.divide(20, 5));   // 4
console.log(MathUtils.divide(10, 0));   // RangeError: Division by zero

Solution

class MathUtils {
  //highlight
  static add(a, b) {
    return a + b;
  }

  static subtract(a, b) {
    return a - b;
  }

  static multiply(a, b) {
    return a * b;
  }

  static divide(a, b) {
    if (b === 0) {
      throw new RangeError('Division by zero');
    }
    return a / b;
  }
  //endhighlight
}

console.log(MathUtils.add(5, 3));       // 8
console.log(MathUtils.subtract(10, 4)); // 6
console.log(MathUtils.multiply(6, 7));  // 42
console.log(MathUtils.divide(20, 5));   // 4
console.log(MathUtils.divide(10, 0));   // RangeError: Division by zero

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