On 04/04/2012 08:17 AM, Masklinn wrote:
On 4 avr. 2012, at 17:09, Eric Holk<[email protected]> wrote:
In Rust, you can do something like this instead:
let parts = vec::map([" a", "b ", " c ", "d"]) {|s|
str::trim(s)
};
Isn't it possible to pass str::trim directly to vec::map? It the indirection
through the block really needed?
In this case I believe the block isn't necessary, but in many situations
it is so I've gotten used to just always using it (sadly). The reason is
because generic functions always take arguments by reference while
functions on scalars take their arguments by value, so composing them
isn't possible without an adapter between them. Strings are passed by
reference though so this example should work without the extra block.
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