A small thing to ask where to initialize the state. But in a large codebase, these decisions will improve your daily code efficiency. What do you prefer? (more…)

Most JavaScript developers used jQuery’s .slideUp() and .slideDown() methods, and got used to them. As component based frameworks usually do not include such functionality, the first logic choice is to... (more…)

Pragmatic programming and Duck Typing in the real world. How to apply duck typing to enhance an existing library's functionality with only minimal changes to...

Convert markdown to live React demos http://jxnblk.com/live-doc... (more…)

Learn how I created a simple application to convert and download YouTube videos as MP3s. (more…)