With only one text form, an enter will raise onSubmit event -
regEX tester
RegEX Key
*
0 or More Times
[1-3]
Is a range 1 to 3
+
1 or More Times
[ab23z]
we can have a, b, 2,3 or z
?
0 or 1 Time
(ab|cd)
we can have ab or cd
^
Beginning of Line
$
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