Implement a function myBind(thisArg, ...args) that works like Function.prototype.bind.
It should return a new function with the this keyword set to the provided thisArg and optionally prepended arguments.

Arguments

• thisArg: The value to be set as this in the function.
• args: Arguments to prepend to the function call.

Example

function greet(greeting, name) {
  return greeting + ', ' + name + '!';
}

const sayHelloToAlice = greet.myBind({}, 'Hello', 'Alice');
sayHelloToAlice(); // 'Hello, Alice!'

const obj = { x: 10 };
function add(a, b) {
  return this.x + a + b;
}
const boundAdd = add.myBind(obj, 5);
boundAdd(5); // 20