Массив Сумма JavaScript
const arr = [1, 2, 3, 4];
const sum = arr.reduce((a, b) => a + b, 0);
// sum = 10
Marton
const arr = [1, 2, 3, 4];
const sum = arr.reduce((a, b) => a + b, 0);
// sum = 10function getArraySum(a){
var total=0;
for(var i in a) {
total += a[i];
}
return total;
}
var payChecks = [123,155,134, 205, 105];
var weeklyPay= getArraySum(payChecks); //sums up to 722[1, 2, 3, 4].reduce((a, b) => a + b, 0)const addSum = function (arr) {
return arr.reduce((acc, cur) => (acc += cur), 0);
};