regex101: YouTube Video ID

1st Alternativewatch\?v=

watchthe literal text watch (case sensitive)

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

v=the literal text v= (case sensitive)

2nd Alternative/videos/

/videos/the literal text /videos/ (case sensitive)

3rd Alternativeembed\/

embedthe literal text embed (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

4th Alternativeyoutu.be\/

yoututhe literal text youtu (case sensitive)

.any character (except for line terminators)

bethe literal text be (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

5th Alternative\/v\/

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

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

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

6th Alternative\/e\/

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

ethe literal e (101₁₀ / 145₈ / 65₁₆) (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

7th Alternativewatch\?v%3D

watchthe literal text watch (case sensitive)

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

v%3Dthe literal text v%3D (case sensitive)

8th Alternativewatch\?feature=player_embedded&v=

watchthe literal text watch (case sensitive)

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

feature=player_embedded&v=the literal text feature=player_embedded&v= (case sensitive)

9th Alternative%2Fvideos%2F

%2Fvideos%2Fthe literal text %2Fvideos%2F (case sensitive)

10th Alternativeembed%‌2F

embed%‌2Fthe literal text embed%‌2F (case sensitive)

11th Alternativeyoutu.be%2F

yoututhe literal text youtu (case sensitive)

.any character (except for line terminators)

be%2Fthe literal text be%2F (case sensitive)

12th Alternative%2Fv%2F

%2Fv%2Fthe literal text %2Fv%2F (case sensitive)

13th Alternativeshorts\/

shortsthe literal text shorts (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

14th Alternativelive\/

livethe literal text live (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Negated Character Class[^#\&\?\n]*

*matches any number of characters outside the set below:

#the literal # (35₁₀ / 43₈ / 23₁₆)

\&the literal & (38₁₀ / 46₈ / 26₁₆)

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

\na line-feed (newline) character (ASCII 10)

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

27 tokens

Regular Expression

(?<=watch\?v=|/videos/|embed\/|youtu.be\/|\/v\/|\/e\/|watch\?v%3D|watch\?feature=player_embedded&v=|%2Fvideos%2F|embed%‌2F|youtu.be%2F|%2Fv%2F|shorts\/|live\/)[^#\&\?\n]*

Unit Tests

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