Identity
@
Stack | Position | Description |
---|---|---|
Stack(In) | Top | a |
Top 1 | b | |
Stack(Out) | Top | TRUE or FALSE |
If there is the same (identical) object on Stack-Top and Stack-Top-1, the result is TRUE on the stack; in all other cases FALSE. The latter also applies if a or b is not an object (see example).
Note: If you want to compare values, use the equivalence operator =