I know there's a better way to conditionally include a map entry in a map.. say:

{:a 1 (when (pred?) :b) (when (pred?) 2)}

I think this is better:

(cond-> {:a 1} (pred?) (merge {:b 2}))

but is there a.. clearer(?) way than that

I think some people have an assoc-if or something like that

like: (assoc-if (pred?) {:a 1} :b 2) ?

oh, found a s.o. about it

interesting approach:

(conj m (when value [key value]))

http://stackoverflow.com/questions/16356888/assoc-if-in-clojure

hey that points to a blog I wrote that I don't remember writing :)

Haha, nice job

?assoc is similar

Hi, so if I develop a web app in clojure, where do you usually host it (for free?) I've been hosting my java webapps in openshift which provides containers like jetty or tomcat

?

Heroku has solid Clojure support

And a free tier

https://devcenter.heroku.com/articles/getting-started-with-clojure#introduction

thanks!

In ClojureScript what is the most idiomatic way to access a nested values?

(aget js/e.target.files 0)
(aget (.-files (.-target e)) 0)
(aget (.. js/e -target -files) 0)

I think it’s just

(aget js/e target files 0)

Thanks @surreal.analysis I couldn’t get that to work though. I looked though some code on GitHub and I’ve seen all three used. I guess it doesn’t matter as long as I’m consistent, they look like they all compile down into the same thing.