Regular Expressions 101

^start of line

Positive Lookahead(?=^[^\d]*\d[^\d]*\d[^\d]*$)

^start of line

Negated Character Class[^\d]*

*matches any number of characters outside the set below:

\da digit

Negated Character Class[^\d]*

*matches any number of characters outside the set below:

\da digit

Negated Character Class[^\d]*

*matches any number of characters outside the set below:

\da digit

$end of line

Positive Lookahead(?=.*[a-z])

.*any character (except for line terminators), repeated any number of times

Character Class[a-z]

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

Positive Lookahead(?=.*[A-Z])

.*any character (except for line terminators), repeated any number of times

Character Class[A-Z]

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

.{8,}any character (except for line terminators), repeated at least 8 times

$end of line

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[^\d]*$)(?=.*[a-z])(?=.*[A-Z]).{8,}$

123456789
abcdefghi
ABCDEFGHI
abcdABC12
abcdABC121
.12nabdh#A
Abc4k9h2L
Abc4k9hL+

Abc4l@s$kl4