What You Have Learned

In this lesson, you have:

• Learned why validation is important (pages 444–446)

• Defined validation requirements and used them to create conditional statements (pages 447–449)

• Set up a mechanism to handle errors detected in the validation process (pages 449–452)

• Created several functions for validating strings, sequences, and numbers (pages 452–467)

• Sent data from a validated form to a server for processing (pages 467–469)