How to apply a function to a container/array ?

[Domingo via Digitalmars-d-learn]

Thanks so much it's a bit more bloated than I was expecting but 
it works.
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void main() {
     import std.stdio;
     import std.algorithm;
     import std.array;
     import std.string;
     import std.conv;

     auto ar = [" dad ", " blue "];
     ar.writeln;
     auto arStriped = ar.map!strip.array;
     arStriped.writeln;

     alias stringize = map!text;
     auto sz = stringize([ 1, 2, 3, 4 ]);
     assert(sz.equal(["1", "2", "3", "4"]));
}
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