How to allow only numeric (0-9) in HTML inputbox using jQuery?

Question

I am creating a web page where I have an input text field in which I want to allow only numeric characters like (0,1,2,3,4,5...9) 0-9.

How can I do this using jQuery

Answer 1

Inline:

Unobtrusive style (with jQuery):

$('input[name="number"]').keyup(function(e)
                                {
  if (/\D/g.test(this.value))
  {
    // Filter non-digits from input value.
    this.value = this.value.replace(/\D/g, '');
  }
});