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