Hi there, Difficult to explain issue but an example should be clear: I have a column of type: Vector{Union{Missing, String}} I want to check if String is contained in this type. String <: Vector{Union{Missing, String}} evaluates to false (which makes sense as it’s not a subtype). Is there a w…

How to find which subtypes are contained in a type

AndiMD April 13, 2021, 4:54am 2

eltype provides the element type in a collection. Does this what you need?
String <: eltype(Vector{Union{Missing, String}})

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