Grids are where enterprise Ext JS applications live, and they are also where performance problems show up first. A screen that felt instant with 200 rows becomes sluggish with 20,000, and users blame the framework. In practice, the slowdown almost…

Many of today's most important business applications started life in the era of the JavaScript library: when teams picked jQuery for the DOM, YUI or Dojo for widgets, and Ext JS for rich, desktop-like interfaces in the browser. Those applications…

"What's the best JavaScript framework?" has no single answer, because frameworks are built for different jobs. React, Vue and Svelte shine for consumer apps and design-led products. Angular brings structure to large teams. But data-intensive applications, such as trading platforms,…

Choosing a React JS framework is the first decision in enterprise application development, not the last. Once a React app has to serve hundreds of users, dozens of developers and several years of change, the questions that matter are architectural:…

Ask ten developers whether React is a React JS framework or a library and you'll get a debate. The React team's own answer is clear: React is a library for building user interfaces. It renders components and manages their state,…

Most "best React frameworks" lists are written with marketing sites, blogs and consumer SaaS in mind: SEO, page speed, server rendering and edge deployment. Data-heavy business applications are different. They live behind a login, users keep them open all day,…

In an enterprise Ext JS application, the layout system decides how fast screens render, how well they adapt to different devices, and how easy the codebase is to maintain. Get layouts right and the rest of the UI falls into…

Ask a team with a ten-year-old Ext JS application how much of it is covered by automated tests and the answer is usually a polite laugh. The reasons are understandable: our components are heavy, they need a DOM, they talk…

The Ext JS data grid can do almost anything an enterprise screen needs: grouping, summaries, filtering, cell and row editing, locked columns, spreadsheet-style selection and export. That breadth is exactly why it deserves a wrapper. If every team configures it…