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Expressions by User

   Displaying page 1 of 1 pages; Items 1 to 1
Title Test Details Pattern Title
Expression
^1?[1-9]$|^[1-2]0$
Description
Matches a whole number between 1 and 20 inclusively
Matches
1 | 11 | 20
Non-Matches
0 | 21
Author Rating: Not yet rated. Daniel Pickles
   Displaying page 1 of 1 pages; Items 1 to 1

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