The Function.prototype.apply() method calls the specified function with a given this value, and arguments provided as an array (or an array-like object).

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

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

Examples

function multiplyAge(multiplier = 1) {
	return this.age * multiplier;
}
const mary = {
  age: 21,
};
const john = {
  age: 42,
};
multiplyAge.myApply(mary); // 21
multiplyAge.myApply(john, [2]); // 84

My Solution

Editorial