Node js bundle files12/17/2022 ![]() ![]() So if the login page’s component code is only 50KB, the browser would have to load a 1000KB bundle to view a 50KB page.which the browser may never require to render the login page. This bundle will also contain codes of other components like Home, About, Contact, etc.Now, when a user visits the login page, the entire 1000KB bundle gets downloaded by the browser.When we bundle all these components and the external libraries that we use in these components to a single bundle.js file which comes up to a size of ~1000KB.Let’s take a React web application that has Authentication (Log in/Signup), Home, About, Contact, Dashboard, Blog components.While these advantages make bundling into a single file look very good, an application bundle can become very large as you add new features to your application, which means it can increase your application load time. ![]() Browsers don’t need to load any other files because they are all in a single bundle.Allowing the browser to download our entire application once and handle all the other navigations without any additional network calls to our server. ![]() Advantages of bundling into a single file Tools like Create React App, Gatsby, and Next.js internally use Webpack for bundling code.īundlers like Webpack import all of our application’s dependencies and merge them into a single bundle. When it comes to modern web application development using React we all write JS code in a modular way for easy maintainability but when we are serving that code to a browser to parse it and render it we don’t have to worry about this and can serve all our code as a single JS file. The two-to-three second mark is the decisive moment where bounce rates increase - in fact, 40% of your site visitors will wait no more than three seconds before abandoning a site. ![]()
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