Sum index values of an Array

Question

I want to sum values according to arguments received in command-line. Example : when the user types node program.js 5 7 3 , I want the following output :

0: /usr/bin/node 
1: /home/<pathtotheprogram>/program.js 
2: 5
3: 7
4: 3
5: 15

I am using this loop to pass through the number arguments received in command-line :

process.argv.forEach( (val, index)=> {
    //program logic
})  

How can I solve this?

Answer 1

Here is a detailed answer.

const args = process.argv;
let sum = 0;

if (args.length > 2) {
    for (let i = 2, l = args.length; i < l; i++) {
        sum += parseInt(args[i], 10);
    }
}

console.log(sum);