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Form Validation

Each form field (for example a "First Name" field) can have two types of validation:

  1. Required: This enforces that the user put at least some information in the field
  2. Regular Expression: This enforces a specific pattern of characters to be entered by the user

Regular Expressions

Regular Expressions is a standard way for developers to specify a character pattern.

Useful Examples:

 Alphanumeric Characters [A-Za-z0-9]*
 Alphabetic Characters
[A-Za-z]*
 Digits
[0-9]*
 Email Address
([\w\d\-_]+)(\.[\w\d\-_]+)*@([\w\d\-_]+\.)([\w\d\-_]+\.)*([\w]{2,3})

 

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