Add function to return the key of a value in a collection

Merge pull request #63 from JordiCabezudo/master

Add find a `key` from array parameter

Some receives the key as second argument

Merge pull request #59 from Lambdish/some-key

[some] Add key as second parameter

Migrated to Lambdish

Merge pull request #58 from Lambdish/update-readme

[readme] Some improvements

Filter null

Merge pull request #56 from jorgeavilacardenosa/filter_nulls

filter null

Apply now allows traversables as argument

Merge pull request #55 from rgomezcasas/apply-allow-no-arrays

[apply] Allow generators and traversables as arguments

get traversable

Merge pull request #54 from jorgeavilacardenosa/traversable-get

traversable get

memoize reset cache

Merge pull request #51 from jorgeavilacardenosa/memoize-reset-cache

memoize reset cache

Add partition fn

Merge pull request #49 from rgomezcasas/partition-fn

Add partition fn

Add do_if function

Merge pull request #46 from jorgeavilacardenosa/do-if-function

do_if function

First public release

Merge pull request #45 from rgomezcasas/butlast-fn

Add butlast fn