Javascript solution to the Secret Santa Dart Dare: https://plus.google.com/u/0/118397406534237711570/posts/XjgFRvqtVA4 ""Your Dart program must take a list of people (first name, last name) and return pairs of Secret Santas. A person can't be their own santa, and a person can't be a santa for someone with the same last name.""

santa.js

var people = [
  'Zoe Washburne',
  'Hoban Washburne',
  'Malcolm Reynolds',
  'Simon Tam',
  'River Tam',
  'Buffy Summers',
  'Dawn Summers'
];

var pairs = [],
    gifted = [],
    numPeople = people.length,
    alreadyGifted = false,
    loopCount = 0,
    i = 0;

function findRecipient(person, index) {
  for (i = index; i < numPeople; i++) {
    var person2 = people[i];

    alreadyGifted = gifted.some(function(idx) { return idx === i; } );

    if (person !== person2 && !alreadyGifted) {
      if (person.split(' ')[1] !== person2.split(' ')[1]) {
        pairs.push(person + ' -> ' + person2);
        gifted.push(i);
        loopCount = 0;
        return;
      }
    } else if (i == numPeople-1 && loopCount < 1) {
      loopCount = 1;
      findRecipient(person, 0);
      return;
    }
    
  }
}

people.forEach(findRecipient);
  
console.dir(pairs);