//Write a recursive function that computes the sum of all numbers from 1 to n, where n is given as parameter.

function recSumN(n){
	if (n == 1) return 1;

	return n + recSumN(n-1);
}

console.log(recSumN(4));
//should return 10

	//progression:
	// r(4)
	// 	returns 4 + r(3)
	// 				returns 3 + r(2)
	// 							returns 2 + 1