zip: keys are taken from the first array

[Erikvv]

I would expect it to look in all arrays like it does in lodash. And fill the missing indexes with null like it does now.

I can provide a fix if you want, or maybe we can define another function, maybe 'zipLongest'

[lstrojny]

Sounds indeed like a bug/oversight when implementing the original function. Happy to have a fix for it.

[krtek4]

Actually zip has various implementation regarding this in multiple languages.

• the array_map trick in PHP (passing null as the function) does what you ask
• Ruby : add nil values ( http://apidock.com/ruby/Array/zip )
• Python: elements are truncated ( https://docs.python.org/2/library/functions.html#zip )
• Haskell: elements are truncated ( http://hackage.haskell.org/package/base-4.9.0.0/docs/Prelude.html#v:zip )
• Scala : elements are truncated ( http://www.scala-lang.org/api/2.10.6/#scala.collection.immutable.List )

So I would say it is more of a chose a side kind of thing :P

[lstrojny]

OK, I am convinced. I changed my mind. Let’s add a zip_all() function (or some other name).