Answers for "js sum of digit array"

sum of all numbers in an array javascript

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

how to add numbers in an array in javascript

// how to add numbers in an array in javascript
let number = [10, 20, 40];
let result = number.reduce((a, b) => a + b);
console.log(result); // 70