How to create function that add numbers in array using "while" loop?

Question

I have an exercise to create a function (lets call it "iterateAndSum") which will sum all numbers in array and return the result. I can't use reduce (which is easier). I have to focus on using while loop.

I tried and failed miserably:

function iterateAndSum(arr) {
    while (i--) {
        e += arr[i]; 
    }
}

score 1 · Accepted Answer · 2021-01-26 12:05:25Z

1

function iterateAndSum(arr) {
  let i = 0;
  let e = 0;
  while (i < arr.length) {
    e += arr[i];
    i++;
  }
  return e;
}

edited Jan 26, 2021 at 12:05

answered Jan 26, 2021 at 12:04

user14520680

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1 Comment

Panasiux2 Over a year ago

Thank you, But i can not use reduce, i have to focus on a "while" loop. Is anyway to do so?

divyanshch · Accepted Answer · 2021-01-26 12:07:25Z

1

const arr = [1,2,3];
let i = 0;
let sum = 0;
while(i<arr.length) {
  sum+=arr[i];
  i++;
}

//sum = 6
console.log(sum);

answered Jan 26, 2021 at 12:07

divyanshch

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Comments

Alan Omar · Accepted Answer · 2021-01-26 12:09:51Z

1

function iterateAndSum(arr) {
  let e = 0,i=0;
  while (i < arr.length) {
      e += arr[i++]; 
  }
  return e
}

let result = iterateAndSum([5,9,6,2,8,0,4])

console.log(result)

answered Jan 26, 2021 at 12:09

Alan Omar

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