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	[email protected]',
    'Bowman	Isaac	[email protected]',
    'Childs	Jamila	[email protected]',
    'Deaton	Michael	[email protected]',
    'DeVore	Rebekah	[email protected]',
    'Frost	Travis	[email protected]',
    'Goldstein	Neil	[email protected]',
    'Hammer	Rebecca	[email protected]',
    'Hawley	Mary	[email protected]',
    'Kessler	Tracy	[email protected]',
    'Madariaga Cuba	Lilian Maria	[email protected]',
    'Matheis	Stephen	[email protected]',
    'Mudd	Adam	[email protected]',
    'Noland	Andrew	[email protected]',
    'Paul	Roman	[email protected]',
    'Phillips	Isis	[email protected]',
    'Richter	Stephanie	[email protected]',
    'Robles	Chris	[email protected]',
    'Sizemore	John	[email protected]',
    'Viers	Valerie	[email protected]',
    'Wilson	Eric	[email protected]',
];
var students_cj_shauvonm = [
    'Bowman	Robert	[email protected]',
    'Bushau	Jeremiah	[email protected]',
    'Clark	Stephanie	[email protected]',
    'DeSpain	Patrick	[email protected]',
    'Duley	Eric	[email protected]',
    'Glas	Jennifer	[email protected]',
    'Hagood	Emily	[email protected]',
    'Hansen	Don	[email protected]',
    'Howard	Andre	[email protected]',
    'Kiino	Sarah	[email protected]',
    'Littrell	Brian	[email protected]',
    'Martin	Richard	[email protected]',
    'McCormick	Melanie	[email protected]',
    'Nestmann	Jason	[email protected]',
    'Paige	Alex	[email protected]',
    'Peyton	Matthew	[email protected]',
    'Pinkerton	Tim	[email protected]',
    'Robbins	Ethan	[email protected]',
    'Simone	Matt	[email protected]',
    'Strecker	Kurt	[email protected]',
    'Von Dwingelo	Juanita	[email protected]',
    'Winters	Charles	[email protected]',
];

/**
 * 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("");
});