return sum of array code example
Example 1: how to add up all numbers in an array
var numbers = [10, 20, 30, 40]
var sum = 0;
for (var i = 0; i < numbers.length; i++) { sum += numbers[i]}
Example 2: sum the all values from an array
var numbers = [3, 5, 7, 2];
var sum = numbers.reduce((x, y) => x + y);
console.log(sum); // returns 17
// other way
x = sumAll(1, 123, 500, 115, 44, 88);
function sumAll() {
var i;
var sum = 0;
for (i = 0; i < arguments.length; i++) {
sum += arguments[i];
}
return sum;
}
Example 3: how to add up all numbers in an array
const numbers = [10, 20, 30, 40]
add = (a, b) => a + b
const sum = numbers.reduce(add)
Example 4: how to find sum of array
//C++
int arr[5]={1,2,3,4,5};
int sum=0;
for(int i=0; i<5; i++){sum+=arr[i];}
cout<
Example 5: Write a function that takes an array of number values and returns the sum.
function amountTotal(amount) {
var total = 0;
for (i = 0; i < amount.length; ++i) {
total += amount[i]; // add each element in an array to total
}
return total;// return sum of elements in array
}