Regular Expressions 101

Pro

^start of line

Non-Capturing Group(?:GET|POST)

1st AlternativeGET

GETthe literal text GET (case sensitive)

2nd AlternativePOST

POSTthe literal text POST (case sensitive)

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

the literal (32₁₀ / 40₈ / 20₁₆)

Group 1([1-9]\d{3,}(?:\.\d+)?)

Character Class[1-9]

1-9one character from 1 (49₁₀) to 9 (57₁₀)

\d{3,}a digit, repeated at least 3 times

Non-Capturing Group(?:\.\d+)?

?repeats the group contents below at most once:

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\d+a digit, repeated at least once

\sany whitespace character

msthe literal text ms (case sensitive)

$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.

25 tokens

^(?:GET|POST).* ([1-9]\d{3,}(?:\.\d+)?)\sms$

New

GET /getUser 200 - - 5380.879 ms
GET /getUser 200 - - 34.879 ms

GET /getUser 200 - - 5380.879 ms
GET /getUser 200 - - 34.879 ms