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259675 (2) [Avatar] Offline
#1
In the Optional Binding section you explain that the if statement is checking whether the "width" optional contains a value. But that variable is not used in the code snippet. I think the variable should have been "main" rather than "width". Unless I'm missing something. A minor point but I wanted to mention it.
Craig Grummitt (50) [Avatar] Offline
#2
Thanks for letting me know! I'll definitely fix that up for the next version.