Find all words with 3 letters with regex

Question

I\'m trying to find all words with 3 letters in a string.
So in this list

cat monkey dog mouse

I only want

cat dog
         


        

Answer 1

You should use your match with word boundaries instead of anchors:

\b[a-zA-Z]{3}\b

RegEx Demo

When you use:

^[a-zA-Z]{3}$

It means you want to match a line with exact 3 letters.