I was practicing writing macros and I can’t seem to get defn to work.

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Editorial Team

Asked: May 12, 20262026-05-12T06:48:33+00:00 2026-05-12T06:48:33+00:00

I was practicing writing macros and I can’t seem to get defn to work.

My syntax is: (my-define name parameter body)

Ignoring & parameters and recursive routines, How do I bind the name to a (fn[parameter] body)?

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Editorial Team · Answer 1 · 2026-05-12T06:48:33+00:00

Editorial Team

You will need to transform

(my-define <name> <args> <body>)

to

(def <name> (fn <args> <body>))

This is quite simple actually:

(defmacro my-define [name args body]
  `(def ~name (fn ~args ~body)))

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