使用纯 JavaScript 屏蔽名字和姓氏

Question

I found this answer for masking a US phone number and it works fantastically:

 document.getElementById('phone').addEventListener('input', function (e) { var x = e.target.value.replace(/\\D/g, '').match(/(\\d{0,3})(\\d{0,3})(\\d{0,4})/); e.target.value = !x[2] ? x[1] : '(' + x[1] + ') ' + x[2] + (x[3] ? '-' + x[3] : ''); });

 <input type="text" id="phone" placeholder="(555) 555-5555"/>

Now what I'm trying to do is to modify it to mask an input for first and last name where it will accept two strings of any length made up of only upper/lower alpha characters.

Javascript is not my strong suit and regex looks like matrix code to me, so I'm really hoping someone can put me in the right direction.

Answer 1

This Regex matches a String with a first and last name separated by a white space. fe "John Doe"

([A-Za-z]* [A-Za-z]*)