No one wants to break their head on a Friday evening with a production bug that says cannot read property of undefined. TypeScript is like the buddy next door that saves us from all these troubles. Like any other tool, one has to use it effectively to reap the real…

Every React developer would have experienced the following error when working with React. It happens if one performs a state update (call setState) on a component that has been unmounted. React warns us that this causes memory leaks. …

Typescript is a useful value addition to the JavaScript world. JavaScript can produce unexpected bugs at runtime because of the flexibility it offers. Typescript helps to catch these bugs at an early stage and save us from such headaches. …

Nice approach and clear explanation! One small correction. The wrong code snippet is attached for RenderErrorClient.js

In recent years many companies have started giving importance to building accessible apps. Open-source libraries like Headless UI are gaining a lot of popularity for their accessibility support. In this blog, I will explain the aesthetics of design, a brief introduction about Accessibility and its necessity before diving into the…

We often have to deal with legacy code at some point. In my organization, we have an app that uses the AngularJS framework and is not touched for quite some years. Recently, we were tasked to add a new feature to that app. The app had quite a lot of…

While writing tests, it is often necessary to ensure that tests we write depict the actual user interaction. That is, what the user sees and how he/she interacts with it rather than testing implementation details. …