regex url

const pattern = /^https?:\/\/[^\s\/$.?#].[^\s]*$/i;

// Test a string
console.log(pattern.test("https://example.com")); // true
console.log(pattern.test("ftp://file.server.com")); // false

// Match and extract
const result = "https://example.com".match(pattern);

import re

pattern = r"^https?:\/\/[^\s\/$.?#].[^\s]*$"
flags = re.IGNORECASE

# Test a string
if re.fullmatch(pattern, "https://example.com", flags):
    print("Valid")

# Find all matches in text
matches = re.findall(pattern, text, flags)

import java.util.regex.*;

String pattern = "^https?:\\/\\/[^\\s\\/$.?#].[^\\s]*$";
Pattern p = Pattern.compile(pattern, Pattern.CASE_INSENSITIVE);

Matcher m = p.matcher("https://example.com");
boolean isValid = m.matches(); // true

// Find occurrences
Matcher finder = p.matcher(inputText);
while (finder.find()) {
    System.out.println(finder.group());
}