This function recursively searches an object for keys that match key, and returns the "path" to that key.

Object.findKeyInTree takes two parameters: key and an options object. key is the key you'd like to search the object for. The options object has a couple of values such as caseSensitive and conventionAgnostic

{
  caseSensitive: true,
  conventionAgnostic: false
}

For all the following examples, we will assume that

var test = {
    human: {
        ninja: true,
        dog: isOnInternet ? true : false
    },
    mammal: {
        ninja: true,
        turtle: false,
        dog: true,
        flying_squirrel: 'Yup'
    },
    reptile: {
        turtle: true,
        ninja: true || false,
        lizard: truekk
    },
    flyingSquirrel: 'Yuuuuup!',
    FLYING_SQUIRREL: true
};

test.findKeyInTree('mammal') would return 'mammal'.

test.findKeyInTree('dog') would return ['human.dog', 'mammal.dog'].

test.findKeyInTree('Dog') would return false.

test.findKeyInTree('flying_squirrel', { caseSensitive: false }); would return 'mammal.flying_squirrel'

test.findKeyInTree('flying_squirrel', { caseSensitive: false, conventionAgnostic: true }); would return ['mammal.flying_squirrel', 'flyingSquirrel', 'FLYING_SQUIRREL']

Got it? Good.