Really Easy Field Validation

Form validation is a crucial thing in web applications and making them sometimes requires hard work. Here’s a form validation script that is very easy to use. It has a number of tests built-in but is extensible to include your custom validation checks. Here’s the list of tests available to add to your field elements:

• not blank – required
• a valid number
• digits only
• letters only
• only letters and numbers
• a valid date value
• a valid email address
• a valid URL
• a date formatted as; dd/mm/yyyy
• a valid dollar value
• first option e.g. ‘Select one…’ is not selected option
• At least one textbox/radio element must be selected in a group

Here is a demo of the field validation.