kLiHz kLiHz

Not a college student anymore.

kLiHz / IPv4.ts

Last active February 15, 2025 09:49

Validate IP address (IPv4 / IPv6) in JavaScript / TypeScript

	// WARNING: These code may be incorrect and may not be production ready, so use at your own risk.

	export const dotDecimalIPv4Regex = /^((25[0-5]\|2[0-4]\d\|1\d\d\|[1-9]\d\|\d)\.){3}(25[0-5]\|2[0-4]\d\|1\d\d\|[1-9]\d\|\d)$/;

	const dottedComponentRegex = /^((0(?:x\|X)[a-fA-F0-9]+)\|(0[0-7])\|([1-9]\d))$/;

	export function isIPv4(s: string): boolean {
	const decimals = s.split('.');
	// https://stackoverflow.com/questions/10133820/is-there-any-documentation-for-omitting-zeroes-in-dot-decimal-notation-of-ipv4-a
	// https://linux.die.net/man/3/inet_aton

kLiHz / IPRegExp.ts

Last active February 15, 2025 13:40

JavaScript RegExp to match valid IPv4 / IPv6 address

	const d8 = '25[0-5]\|2[0-4]\\d\|1\\d\\d\|[1-9]\\d\|\\d';

	export const ipv4RegStr = `((${d8})\\.){3}(${d8})`

	export const ipv4Matcher = new RegExp(ipv4RegStr, 'g');

	export const ipv4Validator = new RegExp(`^(${ipv4RegStr})$`);

	// https://stackoverflow.com/questions/14638711/regular-expression-for-ipv6-addresses

kLiHz / index.html

Created March 17, 2025 04:46

HNote data v2

	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>HNote Data v2</title>
	</head>
	<body>
	<style>
	body {