Regular Expressions 101

Explanation
Pro

Character Class[a-zA-Z!$.&\d]{4,24}

{4,24}matches between 4 and 24 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)

!the literal ! (33₁₀ / 41₈ / 21₁₆)

$the literal $ (36₁₀ / 44₈ / 24₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

&the literal & (38₁₀ / 46₈ / 26₁₆)

\da digit

Character Class[@]

@the literal @ (64₁₀ / 100₈ / 40₁₆)

Character Class[a-zA-Z]{2,}

{2,}matches at least 2 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)

Non-Capturing Group(?:\.edu|\.com|\.net)

1st Alternative\.edu

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

eduthe literal text edu (case sensitive)

2nd Alternative\.com

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

comthe literal text com (case sensitive)

3rd Alternative\.net

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

netthe literal text net (case sensitive)

Global pattern flags

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

Detailed match information will be displayed here automatically.

25 tokens

[a-zA-Z!$.&\d]{4,24}[@][a-zA-Z]{2,}(?:\.edu|\.com|\.net)

test@school.edu

test@school.edu