Code Lou - FSJS - teams

make_class_teams.js

/**
 * Build a set of randomized, evenly distrubted teams
 *
 * goal team size = ~5 or 6
 *
 * usage:
 * download file and save as make_class_teams.js
 *
 * $ node make_class_teams.js
 *
 * it should output information to the the console...
 * BUT I am going to run and assign teams myself
 * (feel free to run this for fun)
 */
var teamSize = 6;

var students_alan_aaron = [
    'Barton	Heather	artzyone87@gmail.com',
    'Bowman	Isaac	ilbowman40204@gmail.com',
    'Childs	Jamila	mimichilds118@gmail.com',
    'Deaton	Michael	mrdeaton123@gmail.com',
    'DeVore	Rebekah	devore.rc@gmail.com',
    'Frost	Travis	frost.travis@gmail.com',
    'Goldstein	Neil	Neil.Goldstein06@gmail.com',
    'Hammer	Rebecca	rehamm01@gmail.com',
    'Hawley	Mary	margrahaw@gmail.com',
    'Kessler	Tracy	starletawe@gmail.com',
    'Madariaga Cuba	Lilian Maria	mclilian27@gmail.com',
    'Matheis	Stephen	nickmath21@gmail.com',
    'Mudd	Adam	acmudd02@yahoo.com',
    'Noland	Andrew	anoland.lou@gmail.com',
    'Paul	Roman	romanpaul@outlook.com',
    'Phillips	Isis	isis_phillips@yahoo.com',
    'Richter	Stephanie	StephanieDRichter@gmail.com',
    'Robles	Chris	cjrobles2@gmail.com',
    'Sizemore	John	guysizemore@me.com',
    'Viers	Valerie	valerieviers@yahoo.com',
    'Wilson	Eric	ewpiano@gmail.com',
];
var students_cj_shauvonm = [
    'Bowman	Robert	rjbowman8@gmail.com',
    'Bushau	Jeremiah	exjerlock@hotmail.com',
    'Clark	Stephanie	steph.z.clark@gmail.com',
    'DeSpain	Patrick	ptdespain@gmail.com',
    'Duley	Eric	ericduley@yahoo.com',
    'Glas	Jennifer	jenn@jennglas.com',
    'Hagood	Emily	hagoodem@gmail.com',
    'Hansen	Don	dhansen@area71.com',
    'Howard	Andre	andre.howard40@yahoo.com',
    'Kiino	Sarah	sarah.kiino@gmail.com',
    'Littrell	Brian	brianl@bluegrass.net',
    'Martin	Richard	thetvdoctor66@gmail.com',
    'McCormick	Melanie	mtmccorm@gmail.com',
    'Nestmann	Jason	nestmannj@bellsouth.net',
    'Paige	Alex	apaige161@gmail.com',
    'Peyton	Matthew	matthewcpeyton@gmail.com',
    'Pinkerton	Tim	timpinkerton@mail.com',
    'Robbins	Ethan	ethanrobbins@ymail.com',
    'Simone	Matt	Matt.simone14@gmail.com',
    'Strecker	Kurt	ksphotopro@gmail.com',
    'Von Dwingelo	Juanita	jvondwingelo@gmail.com',
    'Winters	Charles	destinydiver@gmail.com',
];

/**
 * we want to split up the array into groups of size <chunksize>
 * add a new prototype to all arrays in javascript
 */
Array.prototype.chunk = function (groupsize) {
  var sets = [];
  var chunks = this.length / groupsize;
  for (var i = 0, j = 0; i < chunks; i++, j += groupsize) {
    sets[i] = this.slice(j, j + groupsize);
  }
  return sets;
};

/**
 * we want to randomize all parts of an array (shuffle items)
 * add a new prototype to all arrays in javascript
 * MUTATES array & returns it
 */
Array.prototype.shuffle = function(){
  var counter = this.length, temp, index;
  // While there are elements in the array
  while (counter > 0) {
    // Pick a random index
    index = (Math.random() * counter--) | 0;
    // And swap the last element with it
    temp = this[counter];
    this[counter] = this[index];
    this[index] = temp;
  }
  // return this, so we can chain
  return this;
};

// for our array - split it into teams of 5
[students_alan_aaron, students_cj_shauvonm].forEach(function(students, classIndex) {
  console.log("------------------------------");
  console.log("class #" + (classIndex + 1));
  console.log("------------------------------");
  students.shuffle().chunk(teamSize).forEach(function(team, index) {
    console.log("  team #" + (index + 1));
    team.forEach(function(name) {
      console.log("    " + name);
    });
  });
  console.log("");
});