const sum = [1, 2, 3].reduce((partialSum, a) => partialSum + a, 0);
console.log(sum); // 6
Run code snippet/**
* C program to find sum of all elements of array
*/
#include <stdio.h>
#define MAX_SIZE 100
int main()
{
int arr[MAX_SIZE];
int i, n, sum=0;
/* Input size of the array */
printf("Enter size of the array: ");
scanf("%d", &n);
/* Input elements in array */
printf("Enter %d elements in the array: ", n);
for(i=0; i<n; i++)
{
scanf("%d", &arr[i]);
// Add each array element to sum
sum += arr[i];
}
printf("Sum of all elements of array = %d", sum);
return 0;
}/**
* C program to find sum of all elements of array
*/
#include <stdio.h>
#define MAX_SIZE 100
int main()
{
int arr[MAX_SIZE];
int i, n, sum=0;
/* Input size of the array */
printf("Enter size of the array: ");
scanf("%d", &n);
/* Input elements in array */
printf("Enter %d elements in the array: ", n);
for(i=0; i<n; i++)
{
scanf("%d", &arr[i]);
}
/*
* Add each array element to sum
*/
for(i=0; i<n; i++)
{
sum = sum + arr[i];
}
printf("Sum of all elements of array = %d", sum);
return 0;
}