02. BABY STEPS

BABY STEPS (Exercise 2 of 13)

Write a program that accepts one or more numbers as command-line arguments
and prints the sum of those numbers to the console (stdout).

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HINTS

You can access command-line arguments via the global process object. The
process object has an argv property which is an array containing the
complete command-line. i.e. process.argv.

To get started, write a program that simply contains:

 console.log(process.argv)  

Run it with node program.js and some numbers as arguments. e.g:

 $ node program.js 1 2 3  

In which case the output would be an array looking something like:

 [ 'node', '/path/to/your/program.js', '1', '2', '3' ]  

You'll need to think about how to loop through the number arguments so
you can output just their sum. The first element of the process.argv array
is always 'node', and the second element is always the path to your
program.js file, so you need to start at the 3rd element (index 2), adding
each item to the total until you reach the end of the array.

Also be aware that all elements of process.argv are strings and you may
need to coerce them into numbers. You can do this by prefixing the
property with + or passing it to Number(). e.g. +process.argv[2] or
Number(process.argv[2]).

BABY STEPS (Exercise 2 of 13)

    var sum = 0;
    
     
    for(var i=2;i<process.argv.length;i++){ //arguments start from index 2
     
     
     sum+= Number(process.argv[i]); //loop through arguments and add them up
     
    }
 
   console.log(sum);

Your submission results compared to the expected:

             ACTUAL                                 EXPECTED                

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"62" == "62"
"" == ""

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✓

Submission results match expected

PASS Your solution to BABY STEPS passed!

Here's the official solution in case you want to compare notes:

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---

    var result = 0
    
    for (var i = 2; i < process.argv.length; i++) {
      result += Number(process.argv[i])
    }
    
    console.log(result)

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