And because React warnings in general only fire in development, it means that these warnings are never shown when building with Gatsby 😱 This is a trade-off. By opting out of server-side-rendering in dev, Ga
In React, you control branching logic with JavaScript. You can return a JSX expression conditionally with an if statement. You can conditionally save some JSX to a variable and then include it inside other JSX by using the curly braces. In JSX, {cond ? <A /> : <B />} means “if co...
Internet Explorer 8 no longer being supported likely means that some of the internal processes are more optimized. React 15 truly is faster in the rendering process, but only when built for production. Development mode is actually quite a bit slower, mostly because of the plethora of functionalit...
While the name has the word “static” in it, it doesn’t at all mean boring or lifeless. It simply means the entire site is pre-rendered into HTML, CSS, and JavaScript at build time, which then get served as static assets to the browser. Because all of that HTML, CSS, and JS ...
The first steps of using React Query is always to create aqueryClientand wrap the application in a<QueryClientProvider>. When doing server rendering, it's important to create thequeryClientinstanceinside of your app, in React state (an instance ref works fine too).This ensures that data is...
Writing a cache header is straightforward, provided you learn how to configure it properly. Let’s examine what each tag means. Public vs. Private One important decision to make is choosing betweenprivateandpublic.publicindicates that the response can be stored in a shared cache (CDN, proxy cac...
This means that by default, any JavaScript code that you run will block any other browser tasks from running, such as painting the screen. This is why it's especially important that JavaScript code be fast. However, in some cases, even the performance of the React reconciliation code isn't...
It means that developers can focus on creating the desired user experience and custom functionality rather than spending time on low-level implementation details. React Player is highly customizable and can easily be extended to support new media types or additional functionality. It has several built...
ReactDOM.hydrate : ReactDOM.render; Since you can’t use <Suspense> with ReactDOMServer.renderToString(), you’ll need to manually wait for your intial route to load. This means that instead of letting your <Router> component create a navigation object, you’ll need to manually create one...
it only renders therootroute into the HTML file and then determines which child routes to load based on the browser URL during hydration. This means you can use aloaderon the root route, but not on any other routes because we don't know which routes to load until hydration in the ...