How can I validate a full name input in a form using javascript?

Question

I would like to write a function to validate a full name input in a form with Javascript:

a single word will be ok, a string with some blank character among name surname, middle name too, but I do not want any digit.

Any suggestion?

Answer 1

I would suggest not putting so much effort in validating data via JS. If a user has JS disabled, you will end up with some data you don't want on database.

Validate it via the server side.

Now, regards your question, I would try with regular expressions.

Answer 2

There are several ways to write this, but, simply, the regular expression

/^[a-zA-Z ]+$/ 

should work for you. It will find any combination of alpha characters and spaces but no digits.