JAVASCRIPT

sum of array elements in javascript

let arr = [2, 4, 1, 3, 5];
let result = 0;

for (let i = 0; i < arr.length; i++) {
   result += arr[i];
}

console.log(result); // 15

sum of array of number

const sum = [1, 2, 3].reduce((partialSum, a) => partialSum + a, 0);
console.log(sum); // 6
 Run code snippet

sum of an array

const sum = (...args) => args.reduce((a, b) => a + b, 0);
console.log(sum(1,2,3)); // returns 6

sum of array

int sumofarr(int *a, int n) {
	if (n>1)
        return a[n-1]+sumofarr(a, n-1);
    return a[0];
}

sum of array value

$total = 0;
foreach ($products as $product) {
    $subtotal = $product['price']*$product['quantity'];
    $total += $subtotal;
}

echo $total;