jQuery Validation: Changing Rules Dynamically

Question

I have a single form that, depending on which radio button is clicked (Login or Signup), displays either:

• email address
• password

or:

Answer 1

This post is from years ago, but since it has been viewed a lot of times, I think it would be useful to say that the jQuery Validation plugin now allows us to read, add and remove rules.

Some examples:

1. Print all rules attached to #myField: console.log($('#myField').rules());

2. Remove an unwanted rule: $('#myField').rules('remove', 'min');

3. Add a new rule: $('myField').rules('add', {min: 10});

So say if you want to dynamically update the minimum value required. You can call a remove and a add right after:

// Something happened. The minimum value should now be 100
$('#myField').rules('remove', 'min');
$('#myField').rules('add', {min: 100});

More information can be found here: https://jqueryvalidation.org/category/plugin/#-rules()