I'm continuing to experiment with React and TypeScript. The weekend-long project this time was a Covid-19 data tracker. In this blog post I will share how I built c19stats.now.sh. I exposed the data as a public API at the same URL. I guess you, as many other people, follow the situation so you may want to glue your fingers on the keyboard and create something useful around the data. I got lots of fun playing with the diagrams.

I'm a Windows user and I'm working on a ExpressionEngine based site. I'm using EasyPHP as a server and everything works as expected. However, once I decided to upload a file I got "Thumbnail could not be created for the image. Please make sure the thumbnail directory is writable.".

I'm very happy visiting Stackoverflow more often then Facebook these days. Today I landed on this question. I'm not sure that I understand the real context of the situation, but I found something helpful, which may be useful for you. What if we have an object and want to use it as a base for JavaScript class (i.e. function). The idea is to create instances and basically extend the original object.

"As the digital landscape continues to become more complex, it's essential for us to start thinking beyond the desktop and embrace the unpredictability of the future. Mobile is forcing us to rethink the content we create and the context in which people interact with our products and services. This session will cover how to change our thinking and start acting differently in order to create more future-friendly experiences"

Checkout Revealing the magic: How to properly convert HTML string to a DOM element article.

I'm working on a chrome extension which accepts user text, work with it and output the result in a div. I used jQuery in the beginning, for several tasks, but later I decided to remove it and deal with pure javascript/DOM manipulations. The output div was filled by using innerHTML property and everything was ok. But, at some point, I sent few buttons to the user and he has to interact with them. However, once I update the div's content the event listeners are detached and the buttons became non-functional.

Take a 20 minutes' break and read this. That's how Medium is created. It's really inspiring.

We all know that the usage of InternetExplorer brings a lot of problems for us (the developers). Did you know that there is a JavaScript method createStyleSheet that you can call only 31 times.

Again, IE proves that is full with bugs. Simple but effective solution.

Finally I managed to create the RSS feed for this blog. The url is http://krasimirtsonev.com/blog/rss.

Filmefex Studio is a special effects facility, where they design and create effects for the motion picture industry. Check out here