This the syntax for map destructuring. Works on function argument vector
and let bindings.
You'll find multiple online resources that explain this clearly.
Sent from phone. Please excuse brevity.
On 14 Mar 2013 21:07, <zlj844...@gmail.com> wrote:
> *excuse me, when I read the storm src,I catch some code as follows*
> *
> *
> *(let [{:keys [root watcher auth-conf], :or {auth-conf "auth-conf", root
> "root", watcher "watcher"}} {:auth-conf "aaaaa", :watcher "bbbbbbb"}]*
> * (println auth-conf)(println root)(println watcher)*
> *)*
> *
> *
> *I don't know what's it means like *
> *
> *
> *(let [{:keys [root watcher auth-conf], :or {auth-conf "auth-conf", root
> "root", watcher "watcher"}} {:auth-conf "aaaaa", :watcher "bbbbbbb"}])*
> *
> *
> *codes*
> *
> *
> *can some one help me, thanks*
>
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