Because Elixir is a lisp-2 language, variables and functions are in different "namespaces". This means you can have local variables with names of local functions without any issues, but it also means you need different syntax when you want to call a function contained in a variable. Or formulated differently - variables can't shadow functions. For example, consider: bar = &foo/0 bar.() #=> 1 bar() #=> 2
def foo(), do: 1 def bar(), do: 2 Having a Kernel.id/1 function would not preclude you from using variables called id. Michał. On 2 Jul 2019, 18:41 +0200, Christopher Keele <[email protected]>, wrote: > I'd cast my vote against this. The proposal seems to be: > > 1. Create a function named 'id' or some such > 2. Put it in the Kernel namespace (so it need not be prefixed) > > I've been doing a lot of python lately and they have a lot of things like > this, including the same 'filter' global function mentioned in this thread. > > Points against: > > 1. It'd suck to not be able to use 'id' as a variable name, and would > conflict with a lot of existing code. > 2. Alternative names to 'id' or namespacing it are not shorter than '&(&1)' > 3. '&(&1)' is more open to change with requirements > 4. Adopting 'id' within Kernel would encourage adding more utility functions > to it, exacerbating 1, like the proposed 'filter' function > 5. Not adopting it within the Kernel would be hard, as there's no real > appropriate place for it elsewhere in standard lib, unlike Enum's 'filter' > > Generally it's a nice idea, but I can't think of a great way to make it work, > and it'd open the floodgates to more utility functions that I've come to find > grating in day-to-day python development. > > Just my two cents, > Chris K > -- > You received this message because you are subscribed to the Google Groups > "elixir-lang-core" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/elixir-lang-core/fffd5b76-4385-40de-93bd-148f1b94bb27%40googlegroups.com. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "elixir-lang-core" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/elixir-lang-core/b2149582-b8ba-4759-99ac-a634f73f3243%40Spark. For more options, visit https://groups.google.com/d/optout.
