Regex match String with only one type of character

Question

Trying to find a regex that matches to a String with only one type of character:

Example: "aaaaaa" or "a"

What expression would do this?

possible duplicate of [Regular expression to match any character being repeated more than 10 times](http://stackoverflow.com/questions/1660694/regular-expression-to-match-any-character-being-repeated-more-than-10-times) — senshin, Nov 16 '14 at 00:19

score 2 · Answer 1 · answered Nov 16 '14 at 00:19

2

Using capturing group and backreference:

/^(.)\1*$/

According to the regular expression engine you're using you may need to replace \1 with $.

answered Nov 16 '14 at 00:19

falsetru

1 Answers1