Dodaj wszystkie elementy w tablicy JavaScript
console.log(
[1, 2, 3, 4].reduce((a, b) => a + b, 0)
)
console.log(
[].reduce((a, b) => a + b, 0)
)
Clean Constrictor
console.log(
[1, 2, 3, 4].reduce((a, b) => a + b, 0)
)
console.log(
[].reduce((a, b) => a + b, 0)
)const sum = arr => arr.reduce((a, b) => a + b, 0);function addArrayNums(arr) {
let total = 0;
for (let i in arr) {
total += arr[i];
}
return total;
}