If you are a beginner in front-end world or you are back-end programmer, like C#, Java, Python or SAP-ABAP and from time to time you must do some coding in HTML, CSS or JavaScript, than you are in a right place! I will show in this short course the most important parts of Front-End world,…

JavaScript: creating own callback functions
Many methods in JavaScript uses callback functions. Let’s consider e.g. Array “map” method. You can have a variable containing array like: const numbers = [9, 8, 7, 6, 5, 4] and you can chenge all it’s elements by running a “map” method with a callback function which will do the same operation on every element…

jQuery: scroll to top button
I will show in this short article how to add “scroll to top” button or arrow. This is a popular solution used on blogs or “one page” websites – so in situation when web page has a long content, which require a lot of scrolling, then user has easy option to go smoothly to top…

The easiest REST API with NodeJS + ExpressJS + TypeScript
I will show you in this article how to build totally the easiest REST API build with NodeJS with Express plugin with TypeScript in place. This may sound as hard task to do, but with this short tutorial you will get everything working in just a few easy steps. You will be able to proceed…

JavaScript: Adblock check
If you are running a website, you must know how annoying are AdBlock users. You try to give the best possible content for your users for free and you want simply to earn some money by external advertising services like Google Adsense, but AdBlock users are constantly minimizing your incomes. So… JUST CHECK IF USER…

JavaScript: check if variable is object or array
🠗 Skip reading – scroll down to solution 🠗 Why it is so important to verify if variable is an object or array? In JavaScript it is easy to be fooled. The same is with objects and arrays. Often we must check if some variable is object or array. Short example – we receive some…

JSON flatify
JSON flatify is an application which allows you to copy-paste JSON text or upload a JSON file and convert its content into flat JSON syntax. You can use here whatever JSON syntax you want – even complex nested objects and arrays with values, and JSON FLATIFY app will consume it, and give you nice and…

XML to Excel XLS and Open Office ODS
XML to Excel is application which allows you to copy-paste XML text or upload a XML file and convert its content into Excel XLS file. You can use here whatever XML syntax you want – even complex nested objects and arrays with values, and XML TO EXCEL app will consume it, and give you nice…

XML to CSV
XML to CSV is application which allows you to copy-paste XML text or upload a XML file and convert its content into CSV file. You can use here whatever XML syntax you want – even complex nested objects and arrays with values, and XML TO CSV app will consume it, and give you nice and…

JSON to CSV
JSON to CSV is application which allows you to copy-paste JSON text or upload a JSON file and convert its content into CSV file. You can use here whatever JSON syntax you want – even complex nested objects and arrays with values, and JSON TO CSV app will consume it, and give you nice and…