89.customBind

Write a function named customBind that will be used to extend the Function prototype.

It will receive 2 parameters:

• a variable of any type - newThis
• an Array of items that can be of any type - params

The function should return a new function - let's call it bindedFn - that doesn't accept any parameters.

When calling it we should actually call the initial function but using newThis as the this context and the items inside params Array as arguments.

Function.prototype.customBind = customBind;

function addToThis(nr1, nr2) {
    return this + nr1 + nr2;
}

const bindedFn = addToThis.customBind(5, [10, 15]);
console.log(bindedFn()); // 30