Allow text box only for letters using jQuery?

Question

I want to make a text box allow only letters (a-z) using jQuery. Any examples?

Answer 1

Supports backspace:

new RegExp("^[a-zA-Z \b]*$");

This option will not check mobile. So you can use a jQuery Mask Plugin and use following code:

jQuery('.alpha-field, input[name=fname]').mask('Z',{translation:  {'Z': {pattern: /[a-zA-Z ]/, recursive: true}}});