JavaScript

Browser fingerprints: tracking without cookies

In recent years, so-called browser fingerprinting has established itself as a tracking method that doesn’t rely on the use of cookies. Web servers capture different characteristics from visitors’ browsers and determine their digital fingerprint based on them. They enable visitors to be recognised at a later date. While some information is automatically transmitted, it is mainly active elements [...]   

Bootstrap tutorial: the first steps

Bootstrap is one of the best solutions when it comes to creating websites for all devices with little effort. But what exactly lies behind the framework that was originally planned to be used as an internal optimisation tool for Twitter? Can total beginners with no CSS, JavaScript, or HTML experience also achieve attractive results?   

Popular JavaScript frameworks and libraries

If you’ve ever worked with JavaScript on a website, you will know how complicated the Document Object Model (DOM) is. With their useful functions and simplifications, JavaScript frameworks and libraries provide a helping hand for developers and promise a simpler programming procedure. But what are the best JavaScript libraries and frameworks? And how does a framework actually differ from a [...]   

Tutorial: JSON-LD with Schema.org

JSON LD gives the programmers the possibility of embedding meta data as script separately from web content. Separating HTML markup and semantic annotation helps ensure a more easily read source text and facilitates tagging meta data for dynamic web content. All of this makes JSON-LD a serious competitor of the data formats RDFa and Microdata.   

MooTools: tools for class-based JavaScript

No programming language has made its mark quite like JavaScript. Developed in 1995 as a Java alternative for the netscape browser, you would be hard pushed to find a web application that doesn’t use this universal scripting language. However, critics rightly express concerns over the fact that JavaScript lacks a class system and the language is more unstructured than it should be. The MooTools [...]   

Website optimization: tips and tricks for more speed

Many website operators fall short when it comes to keeping up with the creation and maintenance aspects of their sites. Despite responsive design, many websites still have loading times that are too long, which can prove off-putting for visitors. Our guide reveals what you can do to optimise the performance of your website.   

Introduction to Node.js

With the software platform, Node.js, you can use JavaScript server-side and benefit from the asynchronous, event-based programming and the range of options for developing server applications. In this Node.js tutorial, we give you an overview of the program’s modular structure, explain how you can install program modules at any time using the integrated package manager, NPM, and use them to set up [...]   

Module tests in software development

Module tests are one of the most effective methods of identifying as many errors in the source code as possible early on in the software development process. The special feature: the smallest isolatable components of a program are placed in a neutral test environment. If errors appear, it’s obvious they are occurring in the module being tested, which makes them easy to correct.   

SVG format: how to embed SVG vector graphics

Increasing the size of a raster graphic beyond its actual resolution comes with a loss of quality, which can lead to serious problems in your responsive web design, including increased loading times and a lower ranking in search engine results pages. Optimizing GIF, PNG, and JPG images to display properly across different devices can rapidly turn into a mammoth task. Because of this, vector [...]   

Rich Cards: the new Google results format

In May 2016, Google launched the next big change to the appearance of its search engine results pages with Rich Cards. Given that more than half of searches on the world’s most popular search engine come from mobile devices today, it’s hardly surprising that the latest results format update is designed specifically for smartphones and tablets. So what do Rich Cards entail? And how can web [...]