I've always kind of wanted {} for initializing a Dict, a la Python. Is
there really any difference between Any[] and {}? Do we really need {} for
Any arrays? I think it would be much easier if square brackets [] were
always array-type things, and {} were Dict things.-Jacob On Thu, May 1, 2014 at 6:20 PM, Kevin Squire <kevin.squ...@gmail.com> wrote: > In https://github.com/JuliaLang/julia/issues/4871, I suggested Dict(K,V) for > constructor syntax, so that it matches Array(Int) construction syntax. > My understanding was that there's a slight issue with the way that Dicts > are used internally that would require some changes, but that it's > generally doable. > > That issue, as written, is somewhat confusing, so it's probably worth > opening up a separate issue about this. > > Cheers, > Kevin > > > > On Thu, May 1, 2014 at 10:56 AM, thom lake <thom.l.l...@gmail.com> wrote: > >> Agreed. Initialization continues to send me running for the REPL. For >> example (Int)[], Array(Int,0), Array{Int,1}(). The later doesn't work, >> but I always want to type it. I kind of like the (K=>V)[] syntax, but >> wouldn't be sad to see it go if it meant less confusion. >> >> On Thursday, May 1, 2014 1:11:59 PM UTC-4, Stefan Karpinski wrote: >> >>> Is be more in favor of deprecating the (K=>V)[k=>v] syntax and just >>> using keyword args like this Dict{K,V}(k=v). Having so many syntaxes for >>> this is confusing and it's not like the (K=>V)[k=>v] syntax is a thing of >>> beauty. >>> >>> On May 1, 2014, at 12:50 PM, Jameson Nash <vtj...@gmail.com> wrote: >>> >>> The => is special here for the parser. What you want is >>> (Int=>Dict{Int, Int})[ ] >>> >>> However, it's possible your alternative syntax could be made to work. >>> >>> On Thursday, May 1, 2014, thom lake <thom....@gmail.com> wrote: >>> >>>> Both of these work >>>> >>>> julia> Dict{Int,Int}() >>>> Dict{Int64,Int64}() >>>> >>>> julia> (Int=>Int)[] >>>> Dict{Int64,Int64}() >>>> >>>> So does this >>>> >>>> julia> Dict{Int,Dict{Int,Int}}() >>>> Dict{Int64,Dict{Int64,Int64}}() >>>> >>>> This doesn't >>>> >>>> julia> (Int=>(Int=>Int))[] >>>> ERROR: unsupported or misplaced expression => >>>> >>>> Any particular reason? Am I doing something silly? >>>> >>>> >
