What You Have Learned

In this lesson, you have:

  • Learned why validation is important (pages 444446)

  • Defined validation requirements and used them to create conditional statements (pages 447449)

  • Set up a mechanism to handle errors detected in the validation process (pages 449452)

  • Created several functions for validating strings, sequences, and numbers (pages 452467)

  • Sent data from a validated form to a server for processing (pages 467469)