Recursive Pattern (Email List) Regex Pattern

Live Regex Tester

Pattern Breakdown

Code Examples

const regex = /[\w.+-]+@[\w-]+\.[\w.]+(?:\s*,\s*[\w.+-]+@[\w-]+\.[\w.]+)*/;
const test = "[email protected], [email protected], [email protected]";
console.log(regex.test(test)); // true

// Extract matches
const matches = test.match(regex);
console.log(matches);

import re

pattern = r'[\w.+-]+@[\w-]+\.[\w.]+(?:\s*,\s*[\w.+-]+@[\w-]+\.[\w.]+)*'
test = "[email protected], [email protected], [email protected]"
match = re.search(pattern, test)
print(match)  # Found!

package main

import (
    "fmt"
    "regexp"
)

func main() {
    re := regexp.MustCompile(`[\w.+-]+@[\w-]+\.[\w.]+(?:\s*,\s*[\w.+-]+@[\w-]+\.[\w.]+)*`)
    fmt.Println(re.MatchString("[email protected], [email protected], [email protected]")) // true
}

Common Use Cases

Match Examples

About the Recursive Pattern (Email List) Regex

Matches comma-separated email lists. Demonstrates pattern repetition for parsing delimited sequences.

Regular expressions (regex) are powerful pattern matching tools used across virtually all programming languages. The recursive pattern (email list) pattern is classified as advanced difficulty in the advanced patterns category. It works in all major programming languages.

When using this regex, always consider edge cases and test thoroughly with real-world data. Use the interactive tester above to validate the pattern against your specific inputs before deploying to production.

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