Regular Expressions 101

^start of line

Character Class[a-z0-9]+

+matches at least one character from the set below:

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

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

Character Class[\.a-z0-9]{2,}

{2,}matches at least 2 characters from the set below:

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

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

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

\@the literal @ (64₁₀ / 100₈ / 40₁₆)

Character Class[a-z0-9]{2,}

{2,}matches at least 2 characters from the set below:

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-z\.]{2,}

{2,}matches at least 2 characters from the set below:

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

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

$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

Regular Expression

^[a-z0-9]+[\.a-z0-9]{2,}\@[a-z0-9]{2,}\.[a-z\.]{2,}$

New

hunganh020301@gmail.com
hung.anh020301@yahoo.com.vn
hunganh@tes.microsoft.com
hunganh 213@gmai l. com
23sneaker.store@shop.vn
h.a.anh @gmail.com
hung. anh
hung .anh
hun.2.3.123

Substitution

hunganh020301@gmail.com
hung.anh020301@yahoo.com.vn
hunganh@tes.microsoft.com
hunganh 213@gmai l. com
23sneaker.store@shop.vn
h.a.anh @gmail.com
hung. anh
hung .anh
hun.2.3.123