Function sumArray

w3/d2/sum-array.js:13–27

Write a recursive function called `sumArray` that takes an array of integers and returns the value of all the integers added together. Your array may include a mix of positive and negative integers! Examples: sumArray([1, 2, 3]); // 6 sumArray([0, 1, -3]); // -2 sumArray([1, 2, 3, 4, 5]); // 15

(arr)

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function sumArray(arr) {
  if(!arr.length) {
    return 0;
  } else {


  // find a way to shorten the array
  // let popped = arr.pop();
  let shifted = arr.shift();
  // let [first, ...rest] = arr;

  return sumArray(arr) + shifted;
  }
  // return arr[0] + sumArray(arr.slice(1));
}

// console.log(sumArray([1, 2, 3])); //  6
/*