Please enable JavaScript to use regex101
/
^
r
e
g
e
x
[
\
-
_
]
?
1
0
1
$
/
i
Reg
ular
Ex
pressions
101
Upgrade to Pro
Enterprise
Regular Expression
/
\bA(?![^\d\n]*[A-Z]{2})[^\d\n]*(\d+)
/
gm
Input 1
1
New
A bcd 1 should match Abcd1 should match A bcd should not match because there is no number A bCD 1 should not match because there is capital C between the A and the number A bcd 1 B should match because `1` is before the B A test this is S 2 test B test 13 A again a test 4 A bcd 1 should match and capture 1 Abcd1 should match and capture 1 A bcd should not match because there is no number A BCd 1 should not match because there is a capital C between the A and the number A bcd 1 EF should match because 1 is before the EF
Extraction
A bcd 1 should match Abcd1 should match A bcd should not match because there is no number A bCD 1 should not match because there is capital C between the A and the number A bcd 1 B should match because `1` is before the B A test this is S 2 test B test 13 A again a test 4 A bcd 1 should match and capture 1 Abcd1 should match and capture 1 A bcd should not match because there is no number A BCd 1 should not match because there is a capital C between the A and the number A bcd 1 EF should match because 1 is before the EF