find a sum using the numbers from an array code example
Example 1: sum of number using reduce
console.log(
[1, 2, 3, 4].reduce((a, b) => a + b, 0)
)
console.log(
[].reduce((a, b) => a + b, 0)
)
Example 2: javascript sum of array
const sum = arr => arr.reduce((a, b) => a + b, 0);