🔥

Serge Osipov hcz

🔥

Pu-erh driven software engineer

hcz / caesar-cypher.js

Last active January 13, 2018 00:34

Caesar's cipher, the shift cipher

	const shift = (cypherShift, alphabet, messageChar) => {
	const charCode = (ch) => ch.toLowerCase().charCodeAt(0);

	let begin = charCode(alphabet.from);
	let end = charCode(alphabet.to);
	[begin, end] = (begin > end) ? [end, begin] : [begin, end];

	const alphabetLength = end - begin;
	const shiftLength = cypherShift % alphabetLength;
	if (alphabetLength === 0) return messageChar;

hcz / cdn-from-console.js

Last active September 22, 2018 13:11

Adds scripts from CDN in browser console or via bookmarklet

	/**
	* Adds scripts on page without CORS to use additional scripts from CDN
	* Creates scripts inside <head> tag
	*
	* @license MIT
	* @copyright Sergei Osipov 2017
	*/

	((cdnList) => {
	cdnList

hcz / chinese.md

Created November 21, 2018 22:10

Chinese on Gnome (Debian/Ubuntu)

# edit locales and add Chinese
vim /etc/locale.gen
locale-gen
dpkg-reconfigure locales

hcz / cors.nginxconf

Created January 14, 2019 20:41 — forked from pauloricardomg/cors.nginxconf

Nginx configuration for CORS-enabled HTTPS proxy with origin white-list defined by a simple regex

	#
	# Acts as a nginx HTTPS proxy server
	# enabling CORS only to domains matched by regex
	# /https?://.*\.mckinsey\.com(:[0-9]+)?)/
	#
	# Based on:
	# * http://blog.themillhousegroup.com/2013/05/nginx-as-cors-enabled-https-proxy.html
	# * http://enable-cors.org/server_nginx.html
	#
	server {

hcz / btoa-atob.js

Created March 5, 2019 12:02

Node.js ponyfill for atob and btoa

	const atob = a => new Buffer(a, 'base64').toString('binary');
	const btoa = b => new Buffer(b).toString('base64');

hcz / react.html

Created May 5, 2021 20:23

React + babel + JSX inside a single HTML file

	<html>
	<head>
	<meta charSet="utf-8">
	<title>Hello world</title>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/react/17.0.0/umd/react.production.min.js"></script>
	<script src="https://unpkg.com/react-dom@17.0.0/umd/react-dom.production.min.js"></script>
	<script src="https://unpkg.com/@babel/standalone/babel.min.js">
	</script>
	</head>
	<body>