For performance reasons, it is advised to avoid Unions. But on the topic of Nothing, the documentation suggests the compiler will emit efficient code. Is it preferred to use multiple dispatch, i.e., have two versions of the function, one with the argument and one without, or to use Union{T,Nothing} …

Union{T,Nothing} vs multiple dispatch

lrnv November 17, 2022, 8:11pm 5

I would personally prefer the two-signature version.

1 Like

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