how to sum the elements of an array in javascript by themselves code example
Example 1: js sum of array
[1, 2, 3, 4].reduce((a, b) => a + b, 0)
// Output: 10Example 2: javascript sum of array
const sum = arr => arr.reduce((a, b) => a + b, 0);[1, 2, 3, 4].reduce((a, b) => a + b, 0)
// Output: 10const sum = arr => arr.reduce((a, b) => a + b, 0);