Re: About the in expression, Why can't use with array.

[Paul Backus via Digitalmars-d-learn]

On Thursday, 24 October 2019 at 12:58:11 UTC, lili wrote:
Hi:
   In Dlang where is strange design. The in expression can only 
use to associative array, why array can not use in expression.

Checking for the presence of an item in an array requires a 
linear search. You can do it with std.algorithm.searching.canFind:

https://dlang.org/phobos/std_algorithm_searching.html#.canFind