Regular Expressions 101

Explanation

Pro

Character Class[A-Za-z0-9]{1,}

{1,}matches at least one character 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)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Character Class[A-Za-z0-9]{1,10}

{1,10}matches between 1 and 10 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)

\.?optionally matches the literal . (46₁₀ / 56₈ / 2E₁₆)

Character Class[A-Za-z]{1,}

{1,}matches at least one character 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)

\.?optionally matches the literal . (46₁₀ / 56₈ / 2E₁₆)

Character Class[A-Za-z]{1,}

{1,}matches at least one character 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)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

No unit tests

Add a test to get started

25 tokens

[A-Za-z0-9]{1,}\.[A-Za-z0-9]{1,10}\.?[A-Za-z]{1,}\.?[A-Za-z]{1,}

There are no unit tests.