But a critical part for improving the frontend performance is to reduce the JavaScript bundle size that should be downloaded via the network. Source: Ī large part of frontend loading time is spent on executing JavaScript files as well as rendering the page. The below illustrations shows the ratio of frontend/backend assets to be loaded for LinkedIn. So when a user is waiting for a page to load, around 80-90% of the time is due to frontend related code and assets. Frontend performanceįrontend performance optimization is critical because it accounts for around 80-90% of user response time. We look at this aspect more closely and offer suggestions for possible improvements in this area. Performance can be pursued in many different ways, but for this article, we will focus on frontend performance. So we need to have a broader look at performance problems. Not everybody has access to the same type of fast device or is on the fastest internet network. Slimming down your bundle sizeĮven though we have faster computers and mobile devices today, we as developers should think about the audience we are building the product for as a whole.
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