re-frame/docs/Namespaced-Keywords.md

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## Namespaced Ids
As an app gets bigger, you'll tend to get clashes on ids - event-ids, or query-ids (subscriptions), etc.
One panel will need to `dispatch` an `:edit` event and so will
another, but the two panels will have different handlers.
So how then to not have a clash? How then to distinguish between
one `:edit` event and another?
Your goal should be to use event-ids which encode both the event
itself (`:edit` ?) and the context (`:panel1` or `:panel2` ?).
Luckily, ClojureScript provides a nice easy solution: use keywords
with a __synthetic namespace__. Perhaps something like `:panel1/edit` and `:panel2/edit`.
You see, ClojureScript allows the namespace in a keyword to be a total
fiction. I can have the keyword `:panel1/edit` even though
`panel1.cljs` doesn't exist.
Naturally, you'll take advantage of this by using keyword namespaces
which are both unique and descriptive.
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