The Function.prototype.call() method calls the function with a given this value and arguments provided individually.

Source: Function.prototype.call() - JavaScript | MDN

Implement your own Function.prototype.call without calling the native call method. To avoid overwriting the actual Function.prototype.call, implement the function as Function.prototype.myCall.

Examples

function multiplyAge(multiplier = 1) {
  return this.age * multiplier;
}

const mary = {
  age: 21,
};

const john = {
  age: 42,
};

multiplyAge.myCall(mary); // 21
multiplyAge.myCall(john, 2); // 84