What is the regex for social handle (@)?

The regex pattern for social handle (@) is `^@[a-zA-Z0-9_]{1,30}$`. This pattern validates social media handle with @ prefix (1-30 chars).

How do I use this regex in JavaScript?

In JavaScript, create the regex with `const regex = /^@[a-zA-Z0-9_]{1,30}$/;` and test with `regex.test(yourValue)`. It returns `true` if the value matches.

How do I use this regex in Python?

In Python, use `import re; re.match(r'^@[a-zA-Z0-9_]{1,30}$', value)`. The raw string prefix (`r`) prevents Python from interpreting backslashes as escape characters.

Is this regex case-sensitive?

By default, yes. To make it case-insensitive, add the `i` flag in JavaScript (`/^@[a-zA-Z0-9_]{1,30}$/i`) or use `re.IGNORECASE` in Python.

Regex for Social Handle (@)

Regex Pattern

^@[a-zA-Z0-9_]{1,30}$

Social media handle with @ prefix (1-30 chars)

Quick Answer

The regex pattern for social handle (@) is `^@[a-zA-Z0-9_]{1,30}$`. Social media handle with @ prefix (1-30 chars). This works in JavaScript, Python, Ruby, PHP, Java, and most regex engines that support PCRE syntax.

Test Examples

Input	Result
@username	✓ Matches
@John_Doe	✓ Matches
@user123	✓ Matches
username	✗ No match
@	✗ No match
@user-name	✗ No match
@a@a@a@a@a@a@a@a@a@a@a@a@a@a@a@a@a@a@a@a@a@a@a@a@a@a@a@a@a@a@a@a	✗ No match

Code Examples

javascript

const regex = /^@[a-zA-Z0-9_]{1,30}$/;
const isValid = regex.test(value);

python

import re
pattern = r'^@[a-zA-Z0-9_]{1,30}$'
if re.match(pattern, value):
    print("valid")

ruby

pattern = /^@[a-zA-Z0-9_]{1,30}$/
if value =~ pattern
  puts "valid"
end

php

if (preg_match('/^@[a-zA-Z0-9_]{1,30}$/', $value)) {
    echo "valid";
}

java

String pattern = "^@[a-zA-Z0-9_]{1,30}$";
boolean isValid = value.matches(pattern);

Frequently Asked Questions

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