gistfile1.txt

// In this sorting function, we have three indices in our array
// a[0] - the name of the injection 
// a[1] - the name of an injection that THIS injection should be before
// a[2] - the name of an injection that THIS injection should be after

// When given an array:
// [['b', 'c', null], ['a','b', null], ['d', null, 'c'], ['c', null, null], ['e', null, 'd']];

// Then the output from this array should look like: 
// [['a','b', null], ['b', 'c', null], ['c', null, null], ['d', null, 'c'], ['e', null, 'd']];

// We are assuming:
  // The injection should either have a before OR an after, not both
  // If an injection utilizes the same name/object for a before or after target, then the injections should be considered to be un-ordered within that set 

// Here are the rules for the sort:
  // #1 an injection with a before target should appear before any other injection
    // and that injection should appear before it's named target

  // #2 an injection with an after target should appear after any other injection
    // and that injection should appear after it's named target

var injections = [['b', 'c', null], ['a','b', null], ['d', null, 'c'], ['c', null, null], ['e', null, 'd']];

Updated so you have a place to track