`clear`ing a dynamic array

[anonymous via Digitalmars-d-learn]

On Sunday, 25 October 2015 at 11:45:53 UTC, Shriramana Sharma 
wrote:
> http://dlang.org/arrays.html#resize says: """Also, you may wish 
> to utilize the phobos reserve function to pre-allocate array 
> data to use with the append operator."""
>
> I presume this means 
> http://dlang.org/phobos/std_array.html#.Appender.reserve but 
> how `append` is considered an operator is beyond me.

That sentence doesn't refer to std.array.Appender. `reserve` 
means <http://dlang.org/phobos/object.html#.reserve>. The append 
operator is `~=`.