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Answers and rating deltas for

How can I create a regular expression that requires 4 characters and no spaces?

Author Votes Δ
VoteyDisciple 12 +3.62
Kelsey 9 +2.71
Rob Elliott 1 +1.03
Megadix 0 -2.23
user94154 0 -2.34
xximjasonxx 0 -2.39
Last visited: Sep 14, 2014, 5:07:29 AM