Sum of array elements with recursion in JavaScript
Let's now not display the array elements to the console, but find their sum:
function getSum(arr) {
let sum = arr.shift();
if (arr.length !== 0) {
sum += getSum(arr);
}
return sum;
}
console.log(getSum([1, 2, 3]));
Given an array:
let arr = [1, 2, 3, 4, 5];
Use recursion to find the sum of the squares of this array elements.
