When in practice should I use letfn vs. let for defining local functions?
What about cases where I want both local functions and local non-functions?
When in practice should I use letfn vs. let for defining local functions? What
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When in practice should I use letfn vs. let for defining local functions?
What about cases where I want both local functions and local non-functions?
If all I need is one or a few local functions, I
letfnthem. If I need to define a mix of functions and non-functions, I’ll just use a normallet.letfning andleting would be a very verbose way to do this.However, if you need mutual recursion through your local functions, you’ll have to
letfnthem either way.Short version: use them when you think it looks better, and when it’s convenient. There are no hard and fast rules for using either. They are just tools in the Clojure toolbox.
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