handful and interval

[ixid]

>if (a in handful("struct", "class", "union"))
>
>How is this different from
>
>if(canFind(["struct", "class", "union"], a) {...}

It's a lot cleaner without the mess of brackets. You missed a ) 
on the second one, which, without intending snarkiness, perhaps 
demonstrates the greater elegance of the former? Though being 
able to use in on a simple array would be very nice.

if(a in ["struct", "class", "union"])

Wouldn't you expect to search an array at O(n) while an 
associative array would be O(1), making the difference not 
unintuitive?