total sum javascript code example
Example 1: sum of all numbers in an array javascript
const arrSum = arr => arr.reduce((a,b) => a + b, 0)
Example 2: sum all elements in array javascript
arr.reduce((a, b) => a + b)
const arrSum = arr => arr.reduce((a,b) => a + b, 0)
arr.reduce((a, b) => a + b)