Validating event radio group
Optionally: Each input can have a label associated with it, where the 'for' attribute of the label refers to the 'id' attribute of the input.It's also a common practice to have 'id' and 'name' attributes with the same value, although keep in mind that since this plugin does not use the 'id' attribute, this is not mandatory.Displaying error messages before the user had the chance to even type something is not helpful.While developing and debugging the form, you should set the option to true.The decision is often influenced by serverside infrastructure.If a web framework is used, it is often easier to use metadata, which is also good for fast prototyping.You can specify an element input to contain a valid email address, or nothing at all. A validation rule applies one or more validation methods to an input element.You can specify validation rules via metadata or via plugin settings (option ).
When using data attributes, you can set a generic message for all rules, or specific messages per rule: ).
Plugin settings produce cleaner markup, though valid markup results from both.
If your form consists of fields using names that aren't legal Java Script identifiers, you have to quote those names when using the Whenever you have multiple fields with the same rules and messages, refactoring those can reduce a lot of duplication.
By default, the first invalid element in a form is focused after submitting a form with invalid elements.
To prevent confusion on the behalf of the user, the plugin remembers the element that had focus when the form was submitted, and refocuses that element.