Power Up (1.6 Extra Problems).js

/*
	Power Up!
	
	Create a function powerUp() that takes an integer as input. It should return a new number, created by summing each digit raised by a consecutive power
	
	ex)
		powerUp(761) --> 7^1 + 6^2 + 1^3 === 44
		powerUp(100) --> 1^1 + 0^2 + 0^3 === 1
*/

function powerUp(num) {
	num = num.toString();
	var sum = 0;
	for (var i = 0; i < num.length; i++) {
		sum += Math.pow(Number(num.charAt(i)),i+1);
	}
	return sum;
}


console.log(powerUp(761));
// 7^1 + 6^2 + 1^3 === 44
console.log(powerUp(100));
// 1^1 + 0^2 + 0^3 === 1

Power Up (1.6 Extra Problems)_console_dump.txt

Native Browser JavaScript

44
1