My Blog

Lately I had to do some client-side performance measurements of a website. In the old days I would have to use the now() method of the Date object, however, we are now provided with the Performance API with some very handy methods. Let’s check together my three favorite measurements.

I recently had to migrate code, for uploading Excel, files from an older .NET Framework application to a new one which is based on .NET Core. I would like to share my learnings with you in a “before and after” form.

There are times when you want to find out duplicated values in rows of a SQL table. We are going to use the HAVING keyword to list the values that are present more than one time. Let us consider the following table with three columns and three rows:

I was working lately with some complex JSON objects coming from the alphavantage, an API for getting meta information about stocks, currencies and the world economy in general, and had to overcome major issues before being able to deserialize the strings into my C# POCO classes.

The Fetch API provides a handy way for downloading resources from the internet via JavaScript code. In my case I used it to download Excel sheets from the back-end of a web application. Let us check the code together and clarify things with the help of comments.