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