js sum of all elements in array code example
Example 1: javascript sum of array
const sum = arr => arr.reduce((a, b) => a + b, 0);
Example 2: add all elements in array javascript
console.log(
[1, 2, 3, 4].reduce((a, b) => a + b, 0)
)
console.log(
[].reduce((a, b) => a + b, 0)
)
Example 3: sum of all numbers in an array javascript
const arrSum = arr => arr.reduce((a,b) => a + b, 0)
Example 4: javascript reduce sum
let nums = [1, 2, 3];
nums.reduce((curr, next) => curr + next);
Example 5: sum all elements in array javascript
arr.reduce((a, b) => a + b)