Typically I talk a lot about deeply technical concepts like TypeScript, type systems, (im)mutability, MobX, Immer etc. But this time it's going to be personal and I'll share lessons, good and bad, about growing as an engineer. I've been leading open source projects, short lived projects as a freelancer and I went through the transition of engineer to tech lead twice. Both at a young startup and at Meta. This talk will be about personal experiences, unpopular opinions and even actions, and anything else that might be counterintuitive. Join for some take-aways for anyone aiming at an engineering focused career. Probably I will be wrong about most things, so don’t miss the opportunity to follow up afterwards!
There is generally a good understanding on how to render large (say, 100K items) datasets using virtual lists, …if they remain largely static. But what if new entries are being added or updated at a rate of hundreds per second? And what if the user should be able to filter and sort them freely? How can we stay responsive in such scenarios? In this talk we discuss how Flipper introduced map-reduce inspired FSRW transformations to handle such scenarios gracefully. By applying the techniques introduced in this talk Flipper frame rates increased at least 10-fold and we hope to open-source this approach soon.