W1D1 Example

sum.js

// Requirements:
// - Take in two numbers from the command line
// - `console.log` the sum of the two numbers

var input1 = process.argv[2];
var input2 = process.argv[3];

var number1 = parseInt(input1);
var number2 = parseInt(input2);

if (isNaN(number1) || isNaN(number2)) {
  console.log('Please enter some valid numbers.')
} else {
  var result = number1 + number2;
  console.log('Sum of ' + number1 + ' + ' + number2 + ' = ' + result);
}