Working with Scrolling on Web Pages: A Comprehensive Guide

Learn how to effectively interact with scrolling on web pages, including how to react to scroll events and utilize throttling techniques. Introduction Scrolling a webpage to view content beyond the visible area, commonly referred to as “below the fold,” is one of the most common user actions. Understanding how to work with scrolling is crucial for building a seamless user experience. In this article, we will explore how to listen for scroll events, retrieve scroll positions, and implement throttling techniques for improved performance....

Working with the DevTools Console and the Console API

Every browser provides a console that allows you to interact with the Web Platform APIs and view messages generated by your JavaScript code. In this article, we will explore how to work with the DevTools console and the Console API to improve your debugging and development process. Overview of the console The console toolbar provides several useful features. There is a button to clear the console messages, which can also be done by clicking cmd-K in macOS or ctrl-K on Windows....

XMLHttpRequest (XHR)

The introduction of XMLHttpRequest (XHR) in browsers in the mid-2000s was a significant milestone for the Web Platform. In this article, we will explore how XHR works, its capabilities, and compare it with other popular alternatives. Introduction Back in the day, technologies like GMail and Google Maps seemed revolutionary. These applications heavily relied on XHR to deliver dynamic content. XMLHttpRequest was initially invented by Microsoft in the 1990s and became a de-facto standard as all major browsers implemented it between 2002 and 2006....