Regular expression for first and last name

Question

For website validation purposes, I need first name and last name validation.

For the first name, it should only contain letters, can be several words with spaces, an

Answer 1

Simplest way. Just check almost 2 words.

/^[^\s]+( [^\s]+)+$/

Valid names

• John Doe
• pedro alberto ch
• Ar. Gen
• Mathias d'Arras
• Martin Luther King, Jr.

No valid names

• John
• 陳大文