JavaScriptda rekursiya orqali massiv elementlari yig'indisi

Keling, endi massiv elementlarini konsolga chiqarish o'rniga, ularning yig'indisini topamiz:

javascriptfunction getSum(arr) {
  let sum = arr.shift();
  
  if (arr.length !== 0) {
    sum += getSum(arr);
  }
  
  return sum;
}

console.log(getSum([1, 2, 3]));

javascriptlet arr = [1, 2, 3, 4, 5];