I'm unable to render correctly a table 8x8 in reagent; It says that "Warning: Every element in a seq should have a unique 🔑 ([:tr ([:td "7-0"] [:td "7-1"]..." but in my code I do assign a unique key to everyone: `(defn board [] [:table.board [:tbody (for [i (range 8)] ^{key (str "tr_" (- 7 i))} [:tr (for [j (range 8)] ^{:key (str "td_" i "_" j)} [:td (str (- 7 i) "-" j)])])]])`

am I missing some element to assign a key to?

try instead of attaching metadata, to pass key as prop

you need a key whenever a sequence is used

so for every for, map etc

specifically your :tr and and :td.

and how do I do that? I'm new to clojurescript, I did only clojure before

[:tr {:key i} "...."]

it worked - no more warning of that kind. Thank you a lot!

enjoy. :thumbsup:

just got this compilation error with 1.9.93 , not present with 1.9.76:

No such var: string/index-of, compiling:(cljs/source_map.clj:260:54)

Ah, just seeing that 93 isn't an actual release as per the Github Readme

@martinklepsch: what version of clojure are you using?

I think @darwin was also experiencing something similar. You may need to use clojure 1.8.0+

yep, string/index-of is Clojure 1.8+

@rohit: good catch, project lacked pinning of clojure version 🙂

Neat, Closure docs got a facelift http://google.github.io/closure-library/api/goog.dom.html

Hi, could somebody point me modern cljs & node project template with nrepl?

@martinklepsch: I find it harder to use this way personally 😞