Question 1

How do I use core.match in a ClojureScript project?

Accepted Answer

In ClojureScript, require the cljs.core.match namespace with :refer-macros [match], as shown in the README example. This ensures the macro is available for pattern matching in browser or Node.js environments.

Question 2

What's better for my project: core.match or Clojure's built-in cond?

Accepted Answer

core.match excels at destructuring complex data with patterns and guards, while cond is simpler for basic true/false conditionals. Choose core.match for data-rich logic and cond for straightforward branching.

Question 3

Can I match on custom data types or records?

Accepted Answer

core.match primarily works with built-in data structures like maps and vectors; for custom types, you may need to destructure them first or use guards, as detailed in the wiki for advanced use cases.

Question 4

How to handle performance with large datasets in core.match?

Accepted Answer

It's optimized for efficiency, but for massive data, manual destructuring might be faster. Benchmark your specific use case, as pattern matching can add overhead in tight loops.

Question 5

What are common pitfalls when starting with core.match?

Accepted Answer

New users often miss handling all pattern cases or misuse wildcards, leading to runtime errors. Study the wiki examples and test thoroughly to avoid unmatched patterns.

Question 6

Is core.match suitable for server-side rendering in ClojureScript?

Accepted Answer

Yes, it works in ClojureScript for server-side contexts like Node.js, but ensure macro expansion is handled correctly during compilation to avoid issues with dynamic code.

core.match

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