Ask Sencha AIFront-end framework performance is one of the most discussed—and most misunderstood—topics in web development. Teams often compare frameworks using benchmark charts, demo apps, synthetic tests, or bundle size claims, then assume those results directly predict real-world application speed. In practice, performance is more nuanced than that. A framework can look fast in a small benchmark […]
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Creating Responsive Layouts with Flexbox and CSS Grid: The Complete Guide
Modern web applications must work across a wide range of screen sizes. From large desktop monitors to tablets and mobile devices, users expect layouts that adapt smoothly without breaking, overlapping, or becoming difficult to use. That is why responsive design is a core part of frontend development, and two of the most important CSS tools […]
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Introduction Modern mobile applications demand rich user experiences, cross-platform compatibility, and rapid development cycles. In this document, you will learn how Ext JS and Capacitor can be combined to create powerful enterprise-grade mobile applications using web technologies. Ext JS provides you with a comprehensive framework for building responsive and feature-rich user interfaces, while Capacitor allows […]
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Debugging is an unavoidable part of JavaScript development. No matter how experienced a developer is, bugs still happen: unexpected UI behavior, failed API requests, timing issues, incorrect state updates, rendering problems, and mysterious runtime errors. The difference between slow debugging and fast debugging usually comes down to having the right process, the right tools, and […]
No Comments Read moreThe Complete Guide to Form Validation in JavaScript (Client & Server Side)
Form validation is one of the most important parts of building reliable web applications. Whether users are signing up, submitting payment details, updating account settings, or completing multi-step workflows, forms are often the main way data enters a system. If validation is weak, inconsistent, or difficult to manage, the result can be poor user experience, […]
No Comments Read moreAsync/await with Ext JS
Probably one of the most appreciated features of the latest versions of JavaScript is Promises, and in particular their use through the new language keywords async/await introduced with ECMAScript 2017. Promises To simplify it a lot, Promises are a standardized way to call asynchronous functions. In JavaScript, the use of asynchronous functions has always been […]
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We know that Ext JS is a war tank. When it comes to handling absurd volumes of data and complex front-end architectures, few frameworks come close. However, writing entire themes based on Sass can become rigid compared to the agile standards of today’s ecosystem. The good news? You can combine the robustness of Sencha components […]
No Comments Read moreHow to Standardize on One UI Component Library Across Your React Apps
In most large organizations, every React app has its own UI stack. One team uses MUI with AG Grid, another uses Ant Design with Recharts, a third has a homegrown table, and the legacy app still runs on Ext JS. Each choice made sense at the time. Together they mean inconsistent screens, duplicated work, several […]
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