Regular Expressions 101

Branch Reset Group(?|^(\d)|\D(\d))

1st Alternative^(\d)

^start of line

Group 1(\d)

\da digit

2nd Alternative\D(\d)

\Dany character that's not a digit

Group 1(\d)

\da digit

Negative Lookahead(?!\d)

\da digit

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

(?|^(\d)|\D(\d))(?!\d)

"R3g3x"
"J4v4scr1pt"
1nício"
"Fina1"
"Dup10"
abc10xyz