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Broaden array constructor to allow any fill value #41562

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Broaden array constructor to allow any fill value #41562

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Commits on Jul 12, 2021

  1. Broaden array constructor to allow any fill value 

    It seems odd to me that `Array{Union{Missing, T}}(missing, n...)` and `Array{Union{Nothing, T}}(nothing, n...)` exist but the more general case `Array{T}(x::T, n...)` does not. 

There are some potential issues I'm sure. Notably it makes `Array{T}(undef, n...)` seem even more of an odd one out, rather than just the only strange one out of three options (the other two being `nothing` and `missing`. But I'm inclined to think this reduces the inconsistency since there are only two options, `x::UndefInitializer` and `x::T`.
    Will Kimmerer committed Jul 12, 2021
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