Set up macOS for development
A month ago, I switched to macOS from Windows because of its terrible development experience (at least for me). It …
Write a programming book with Markdown and Pandoc
Hi. In this post, I want to share how I use Markdown and Pandoc to write my first book in …
Canon LBP on Ubuntu
Hi, this will be a short post. I want to introduce scripts for installing Canon LBP printer driver on Ubuntu. …
Hide secret message with zero-width characters
Zero-width characters are non-printing characters that are not displayed by most applications, which leads to the name “zero-width.” They are …
Multiplicative Functions
Definition In number theory, a multiplicative function is an arithmetic function of a positive integer n that satisfies: For every …
Primality Test
This post introduces some popular algorithms for checking if a number is prime or not. Deterministic algorithms Simplest algorithm A …
A better way to copy text to Clipboard in JavaScript
The problem Typically, this is how copying text is done (taken from here): Create a <textarea> element to be appended to the …
Read moreA better way to copy text to Clipboard in JavaScript
Get a free domain with Freenom and Cloudflare
Need a free domain? Learn how to get one that last for one year from Freenom and leverage Cloudflare platform to manage your domain better.