Generate Regular Expression for First Name Last Name

Question

I want to create a Regular Expression for First Name and Last Name Only with only 2 words with only 1 Space.

Currently my regular expression is here : https://regex101.com/r/WigXOo/1

I have tried the below regular expression:

[A-Z][a-z]+(\s|,)[A-Z][a-z]{1,19}

it is validating correctly :

Sunil Kumar (Correct)

But it is allowing third Name like: Sunil Kumar 123 (Correct)

I want my results like below :

Correct Output:

Sunil Kumar (correct)

InCorrect Output:

• Sunil Kumar 123 (incorrect) (I want only first and second name)

• SUnil Kumar (incorrect) (needed only 1 letter from 1st name and 2nd letter from second name would be capital)

• Sunil Kumar (incorrect) (needed only single space between 1st and 2nd name) (there are 2 spaces between first name and second name)

Please help.

Answer 1

You can add anchors to your expression to match the whole input i.e. ^ and $ so your expression would become:

^[A-Z][a-z]+(\s|,)[A-Z][a-z]{1,19}$