author: Krasimir Tsonev

Hi there, I'm . Senior front-end engineer with over 13 years of experience. I write, speak and occasionally code stuff. Follow me on Twitter, GitHub, Facebook or LinkedIn


Two handy and advanced SASS features and their limitations

I really like SASS and I use it a lot in my daily job. There are tons of useful features. However there are some things which I want to do, but I can't. There are limitation in the syntax and missing functionalities. Sharing what I found, I want to know if you meet those limitation and how you get around them. more

JavaScript challenge: queue implementation

I'm currently working on an animation-heavy web application. There are long chains of CSS transitions/animations, which I have to do. I wrote this little library, because I needed something lightweight with minimalistic API. I think that it deserves its own repository and I created one. more

Meet sequence expression

You have no idea how fun is to transpiler JavaScript. I’m digging into that last few weeks and there is a step where I have to transform an AST into valid code. There is one tree node which I really like - sequence expression. more

forEach or not to forEach

I had an interesting bug in my React application. It happened that the problem was in the fact that I was using forEach instead of for.

The bug that I was encounter was more