different spelling
first spelling
This way of writing requires the introduction of a jQuery plug-in that supports fixed format parsing, and Validation integrates it well into the validation rule coding.
The second method
Do not write the validation rules in the class attribute, but in the javascript code.
The emergence of Ajax has ushered in a new era of updating pages without refreshing.
The ajax() method
The $ajax() method is jQuery's lowest-level Ajax implementation.
Structure: $.ajax(options)