• ← WordBoundary

WordCharacter

WMA link

WordCharacter

represents a single letter or digit character.

• • StringMatchQ[#, WordCharacter] &/@ {"1", "a", "A", ",", " "}

Test whether a string is alphanumeric:

• • StringMatchQ["abc123DEF", WordCharacter..]

• • StringMatchQ["$b;123", WordCharacter..]