javascript_practice/hw09/myBind.js

const myBind = (boundTargetFunction, boundThis, boundArguments) => {
	return (...newBoundArguments) => {
		const iterator = newBoundArguments.values();
		let updatedArr = [];
		boundArguments.forEach((element, index, thisArr) => {
			element === undefined ? updatedArr.push(iterator.next().value) : updatedArr.push(thisArr[index]);
		});
		return boundTargetFunction.apply(boundThis, updatedArr);
	}
}

let pow5 = myBind(Math.pow, Math, [undefined, 5]);
let cube = myBind(Math.pow, Math, [undefined, 3]);

console.log(pow5(2)); //32
console.log(cube(3)); //27

let chessMin = myBind(Math.min, Math, [undefined, 4, undefined, 5,undefined, 8,undefined, 9])
console.log(chessMin(-1,-5,3,15)); //-5


let zeroPrompt = myBind(prompt, window, [undefined, "0"]);
let someNumber = zeroPrompt("Введите число"); // вызывает prompt("Введите число","0")

let joinStr = myBind((...params) => params.join(''), null, [undefined, 'b', undefined, undefined, 'e', 'f'])('a','c','d')
console.log(joinStr) // abcdef