@time
@time
The @time macro "starts a timer" at the beginning of the code, and "stops the timer" when the code finishes. Elapsed time and memory usage is returned.
@which
@which
This macro doesn't allow the expression 2 + 2 to be evaluated at all. Instead, it reports which method would be used for these particular arguments. And it also tells you the source file that contains the method's definition, and the line number.
@show
@show
Show an expression and result, returning the result
Defining Macro
Defining Macro
