[프로그래머스] 평균 구하기 😊
https://programmers.co.kr/learn/courses/30/lessons/12944
function solution(arr) {
var answer = 0;
var sum = 0
for(let i = 0; i < arr.length; i++){
sum += arr[i];
}
answer = sum / arr.length
return answer;
}
reduce 사용
function solution(arr) {
var answer = 0;
answer = arr.reduce((acc, curr) => acc + curr) / arr.length;
return answer;
}