Loop to add numbers in array JS

Question

Hi coders, I was wondering how to create a loop that would log the sum of numbers in an array of numbers. First it would log index[0] but then on the second loop add index[0] + index[1] then index[0] + index[1] + index[2] and so on until the end of array. I’ve been trying to find a solution but nothing worked yet. Any ideas would be greatly appreciated, thanks :)

Answer 1

function addsum(arr){
var sum =0;
for(var z =0;z<arr.length;z++){
sum+=arr[z];
}
return sum;
}

Answer 2

got it, I was so close to figure it out but I am already so overwhelmed from trying to figure out the infinite carousel thing with different image sizes that I simply couldn’t get it right lol. thank you guys :)

Answer 3

var arr = [1,2,3,4,34,24]
var sum = 0;
for(i=0;i<arr.length;i++){
sum += arr[i];
}
console.log(sum);

Answer 4

const arr = [1,2,3,4,34,24];

var sum = 0;

let i =sum;

for(i=0; i < arr.length; i++ ){

sum += arr[i]
}
console.log(sum);