Abstract
Programmers tend to be optimistic, because when they write code, they assume that it will work correctly. However, it's often better to be more pessimistic when it comes to programming. Instead of assuming your code will work the first time, it's safer to assume your code won't work at all. This forces you to be extra careful when writing Swift code to make sure it does exactly what you want and doesn't do anything unexpected.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Author information
Authors and Affiliations
Rights and permissions
Copyright information
© 2017 Wallace Wang
About this chapter
Cite this chapter
Wang, W. (2017). Defensive Programming. In: macOS Programming for Absolute Beginners. Apress, Berkeley, CA. https://doi.org/10.1007/978-1-4842-2662-9_25
Download citation
DOI: https://doi.org/10.1007/978-1-4842-2662-9_25
Published:
Publisher Name: Apress, Berkeley, CA
Print ISBN: 978-1-4842-2661-2
Online ISBN: 978-1-4842-2662-9
eBook Packages: Professional and Applied ComputingApress Access BooksProfessional and Applied Computing (R0)