summation array nums in js code example
Example 1: js sum of array
[1, 2, 3, 4].reduce((a, b) => a + b, 0)
// Output: 10Example 2: sum of all numbers in an array javascript
const arrSum = arr => arr.reduce((a,b) => a + b, 0)[1, 2, 3, 4].reduce((a, b) => a + b, 0)
// Output: 10const arrSum = arr => arr.reduce((a,b) => a + b, 0)