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The .reduce() method was also there in ES5, but I’d never used or seen someone using it in production at that time. Even today, I see people not aware of this method. I’ve also seen people only giving the same shopping cart example while explaining this method and, that’s why I think people don’t completely […]
Have you ever faced this issue that your useEffect hook gets executed multiple times? Maybe sometimes it goes into the infinite loop? When React released the hooks feature, everyone jumped into it and started exploring new features and use-cases. I also started using functional components and completely abandoned the “class components” in my new projects. […]
We recently shipped Data Saver Mode, a new feature on Instagram for Android that helps the app consume less mobile data. In this post, we’ll go over why we decided to work on this feature, our approach in developing it, the engineering implementation, and how people were impacted by it. The motivation behind building Data […]
We recently shipped Data Saver Mode, a new feature on Instagram for Android that helps the app consume less mobile data. In this post, we’ll go over why we decided to work on this feature, our approach in developing it, the engineering implementation, and how people were impacted by it. The motivation behind building Data […]
Shupin Mao is a senior software engineer at Facebook. During her last four years at the company, Shupin helped several teams and gained experience across Instagram and Facebook, including the Instagram Well-being team. Here she shares what got her into engineering, favorite moments, lessons learned, and more. How did you become an engineer? When working […]
Edit: in 2020, Will Larson published Staff Engineer, the first book that properly reasons about Staff+ roles. I cannot recommend the book, the articles, and the podcast enough. You can find all about them at staffeng.com. To extend the tech career ladder, a number of roles have been introduced in the tech community over the […]
Caching various files on disk has always been an integral part of many mobile apps. At Instagram, we use caching to store and recover images, videos, and text files. As a media-heavy application, the Instagram Android app requires a lightweight but stable disk cache system. When we first built the app, we started with the […]