Regular Expressions 101

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Positive Lookahead(?=\d*[A-Za-z])

\d*a digit, repeated any number of times

Character Class[A-Za-z]

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

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

Positive Lookahead(?=[a-zA-Z]*\d)

Character Class[a-zA-Z]*

*matches any number of characters from the set below:

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

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

\da digit

Character Class[A-Za-z0-9]{10,20}

{10,20}matches between 10 and 20 characters from the set below:

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

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

0-9one character from 0 (48₁₀) to 9 (57₁₀)

\ban ASCII word boundary

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*[A-Za-z])(?=[a-zA-Z]*\d)[A-Za-z0-9]{10,20}\b

<73010825822784709>d
https://youtube.com/abcDeFg1234
https://youtube.com/abcDeFg1234|