Hi, I'd like to check which approach is a better one for the example below. The task is rather simple, each string in vector "s" should be "surrounded" by square brackets.
e.g. s = AbstractString["as", "sdf", "qwer"] # s is typically a lot longer @time st1 = AbstractString[ "[" * i * "]" for i in s ] 0.000057 seconds (16 allocations: 672 bytes) 3-element Array{AbstractString,1}: "[as]" "[sdf]" "[qwer]" @time st2 = map(x->"["*x*"]", s) 0.002932 seconds (33 allocations: 2.035 KB) 3-element Array{ASCIIString,1}: "[as]" "[sdf]" "[qwer]" The both expressions yield same results. I wonder whether from the language design point of view one approach should be preferred over the other. Comprehension here is considerably faster, I wonder why. Thanks, Jan