CategoryJavaScript

May 12, 2022 — Google collects performance information from millions of opted-in Chrome browsers around the world and uses this information as a performance ranking factor for its search engine. But it also makes this information freely available so that anyone can use it to check the real-world performance of individual websites. Even more significantly, it’s possible to segment this data according to the technologies used in the websites. In this article, Dan Shappir leverages this information to analyze and compare the performance of leading JavaScript frameworks. Along the way, he uncovers unexpected behaviors and solves a web performance mystery. Read more…

April 29, 2022 — Performance needs to be built in starting at the code level, and user-centric metrics like time to interactive (TTI), total blocking time (TBT), and first input delay (FID) help you gauge how fast a website is. But modern web pages are heavy and ever-growing in size Introducing Partytown, a lightweight open-source solution that reduces execution delays due to third-party JavaScript by offloading third-party scripts to web workers, which run in background threads. Read more…

April 28, 2022 — In this article, Nathan Smith explains how to create modal dialog windows with rich interaction that will only require authoring HTML in order to be used. They are based on Web Components that are currently supported by every major browser. Read more…

April 19, 2022 — In this article, Ekene Eze shares his thoughts about the direction of the web in 2022, and what solutions we can expect to see come up in the ecosystem to significantly improve the Jamstack experience. Read more…

April 11, 2022 — Loading experience is crucial to the user’s first impression and overall usability, so Google defined Largest Contentful Paint (LCP) metric to measure how quickly the main content loads and is displayed to the user. This new attribute will enable us to fine-tune relative resource priority, improve LCP performance, deprioritize JavaScript fetch calls, and much more. Let’s check out fetchpriority and explore some potential use cases. Read more…

April 8, 2022 — Data is among the most important things that make up a web application or a conventional native app. We need data to be able to see and perhaps understand the purpose of an application. In this article, we’ll look at another approach to obtaining data in an application that requires authentication or authorization using Next.js. Read more…

April 4, 2022 — Ever wondered how to build a paginated list that works with and without JavaScript? In this article, Manuel explains how you can leverage the power of Progressive Enhancement and do just that with Eleventy and Alpine.js. Read more…

April 1, 2022 — Next.js’ recent 12.0 release included a new beta feature: middleware. For a detailed explanation, you can read all about it in Sam’s previous article, “Next.js Wildcard Subdomains”. This article, on the other hand, dives into the overall concept of middleware and how handy it can be in building things. Read more…

March 18, 2022 — Building on a previous article on How to Build a Drag-and-Drop File Uploader, we’ll be adding some new features, but more importantly (maybe), we’ll be learning how to build it in Vue 3 and learn some best practices for Vue along the way. Read more…

March 9, 2022 — What started as a case study turned into a guide to visualizing audio with JavaScript. Although the output demos are in React, Jhey Tompkins isn’t going to dwell on the React side of things too much. The underlying techniques work with or without React. Read more…