How to do numeric validation using JQuery?

Question

How to do numeric validation using JQuery. I have to validate my price field using JQuery. any body knows please share your knowledge with me :(

Answer 1

If your looking for form validation, you can look into the validation plugin: http://docs.jquery.com/Plugins/Validation

However if you just want some sample code, it could be as simple as this:

$(function() {
  $('ref-to-input').blur(function() {
    if($(this).val().match(/[^\d]/)) {
      // invalid chars detected
    }
  });
});

you could also filter your input to only allow numeric characters:

$(function() {
  $('ref-to-input').keyup(function() {
    $(this).val($(this).val().replace(/[^\d]/, ''));
  });
});

Edit: don't forget to always use server side checking