Why 'in' works only for assoc arrays?

[Ali Çehreli]

On 12/27/24 6:14 PM, JN wrote:

 > "in" only works for associative arrays by checking for existence of a
 > provided key in an associative array. E.g.:

[...]

 > Naturally, a user will try to use it to check for existence of a value
 > in an array

That's not natural at all because if it worked that way, another user 
would complain about 'in's inconsistency between associative arrays and 
arrays: keys vs. values.

 > onlineapp.d(7):        `in` is only allowed on associative arrays
 > onlineapp.d(7):        perhaps use `std.algorithm.find("John", names)`

That help is not very useful but it escapes any criticism because of the 
clever user of the word "perhaps". Yes, std.algorithm.find could be used 
but the correct function to use in this case is std.algorithm.canFind.

Ali