[Article Contest, first draft] D Slices

[Jesse Phillips]

Jonathan M Davis Wrote:

> The huge advantage of assert over writeln is that it shows you what the result 
> is supposed to be. If you're reading the code or documentation, that's 
> extremely valuable, whereas writeln is useless. However, if what you're 
> concerned about is running the code and see the result, writeln is far more 
> useful. Since you're writing an article, I would definitely go with assert, 
> but it really depends on what you're trying to do. assert works far better as 
> documentation because you can see the result as you read, but writeln when 
> running code because when you do, you can see the result.
> 
> - Jonathan M Davis

I agree, but he is conflicted on whether the assert should pass or fail. By your logic though it sound like you want it also passing. There isn't much difference between these:

   assert(arr.length == 2); // error!

   wirteln(arr.length); // 5