regex101: PCRE (Legacy) Match Workspace

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Non-Capturing Group(?:v(?:ersion)?-?)?

?repeats the group contents below at most once:

vthe literal v (118₁₀ / 166₈ / 76₁₆) (case sensitive)

Non-Capturing Group(?:ersion)?

?repeats the group contents below at most once:

ersionthe literal text ersion (case sensitive)

-?optionally matches the literal - (45₁₀ / 55₈ / 2D₁₆)

\Kresets the starting point of the reported match. Any previously consumed characters are no longer included in the final match

\d+a digit, repeated at least once

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

+repeats the group contents below at least once:

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\d+a digit, repeated at least once

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

25 tokens

Regular Expression

\/(?:v(?:ersion)?-?)?\K\d+(?:\.\d+)+

New

https://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js > 1.11.2
https://ajax.googleapis.com/ajax/libs/jquery/v1.11.2/jquery.min.js > 1.11.2
https://ajax.googleapis.com/ajax/libs/jquery/version-1.11.2/jquery.min.js > 1.11.2
https://ajax.googleapis.com/ajax/libs/jquery/1-11-2/jquery.min.js > NULL
https://ajax.googleapis.com/ajax/libs/jquery/1112/jquery.min.js > NULL
https://www.google.com/recaptcha/api.js?render=6LdBsjgVaoTJ8rC-Npzz16bnAE > NULL

Extraction

https://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js > 1.11.2
https://ajax.googleapis.com/ajax/libs/jquery/v1.11.2/jquery.min.js > 1.11.2
https://ajax.googleapis.com/ajax/libs/jquery/version-1.11.2/jquery.min.js > 1.11.2
https://ajax.googleapis.com/ajax/libs/jquery/1-11-2/jquery.min.js > NULL
https://ajax.googleapis.com/ajax/libs/jquery/1112/jquery.min.js > NULL
https://www.google.com/recaptcha/api.js?render=6LdBsjgVaoTJ8rC-Npzz16bnAE > NULL