array sum code example

Example 1: array sum javascript

const arr = [1, 2, 3, 4];
const sum = arr.reduce((a, b) => a + b, 0);
// sum = 10

Example 2: php sum array elements

<?php
$a=array(5,15,25);
echo array_sum($a);
?>

Example 3: js sum of array

[1, 2, 3, 4].reduce((a, b) => a + b, 0)

// Output: 10

Example 4: javascript sum of array

const sum = arr => arr.reduce((a, b) => a + b, 0);

Example 5: sum the all values from an array

var numbers = [3, 5, 7, 2];
var sum = numbers.reduce((x, y) => x + y);
console.log(sum); // returns 17

// other way

x = sumAll(1, 123, 500, 115, 44, 88);

function sumAll() {
  var i;
  var sum = 0;
  for (i = 0; i < arguments.length; i++) {
    sum += arguments[i];
  }
  return sum;
}

Example 6: javascript reduce sum

let nums = [1, 2, 3];

nums.reduce((curr, next) => curr + next);