1. React
  2. JSCamp
  3. 2019
  4. How we make Web Apps lightning fast at Microsoft

How we make Web Apps lightning fast at Microsoft

Sean Larki at JSCamp 2019

Did you know that the average website takes over 16 seconds to load on a mobile device? Did you know that on average the amount JavaScript and CSS that goes wasted is over 60%! If JavaScript and CSS are our most expensive resources to load, _*why*_ are we hurting our load times by shipping stuff we don’t ever use? How do we get rid of this unused code? How can we profile our web applications load times? Join me as I teach you about the performance constrains of the modern web, and how to write rich applications within these boundaries using household tools like webpack. We'll learn how you can use techniques like code-splitting and how to adopt patterns that we use here at Microsoft so you can make your applications fast and at scale!!