scratchpad: example mini-program for learning about node & bash

scratchpad.js

// main loop
// run with `node scratchpad some arguments` (from same directory)
(function (){

  var args = process.argv;
  console.log(wrapInEverything(args[2]));

  // teaser for later: what will lines 11-13 do?
  // what about lines 15-17?

  // for(var i; i < args.length; i++){
  //   console.log(wrapInSmileys(args[i]));
  // }

  // args.forEach(function(arg){
  //   console.log(wrapInSadFace(arg));
  // });

})(); // <- self-invoking function!

// helper functions

function wrapInEverything(string){
  return wrapInSmileys(wrapInSadFace(string));
}

function wrapInSmileys(string){
  return ":) " + string + " :)";
}

function wrapInSadFace(string){
  return ":( " + string + " :(";
}

// GUESS AT HOW call to `wrapInEnverything` might evaluate...
// "wrapInEverything('wrapme')"
// ":)" "wrapme" ":)"
//":) wrapme :)"
// ":(" ":) wrapme :)" ":("
// ":( :) wrapme :) :(" ""