Clojurians Log v2

@maddie has joined the channel

cool, spread the word this is the best channel to hang out in for Miami Clojure Meetup.

there are lots of other interesting channels, mainly for asking questions about Clojure (#clojure), ClojureScript (#clojurescript) setting up Emacs and Cider #emacs and #cider respectively for Clojure/ClojureScript development etc.

there’s also #events and #jobs which may be of interest...

oh and #code-reviews which are a great way to get constructive criticism

@tailrecur has joined the channel

yay! simple_smile

@maddie: may be of interest to you http://www.clojurebridge.org/

Just signed up! simple_smile

re: macroexpand

there are two macro-expansions available:

macroexpand-1 or macroexpand-all

a macro is a code-rewriter or template engine

think of it like a super-powerful search-and-replace for code

kind of how the C language has a pre-processor which handles #define statements

Clojure’s macros are evaluated at “compile” time

and they re-write your code (usually to a longer version)

macros can generate code that contains. … other macros

this re-writing (or expansion) is recursive

but eventually you will hit something truly “primitive” like a function

macroexpand-1 only does 1 level of macro rewriting

macroexpand-all will go all the way down the rabbit hole and do all of the recursive expansion till you ground out