Are there any good resources for system design?

I'm looking for a book or any consistent resource (videos, website or open source project) for system design. I just finished Designing Data-Intensive Applications: The Big Ideas Behind Reliable, Scalable, and Maintainable Systems and I'm interested...

Are there any interesting online conferences or hackathons this period?

Do you have anything you want to share with us?

During this period, we have a lot of time. So why we don't seize the opportunity and share any link, resource, book, tutorial, video, idea, etc... If anyone has an idea about online hackathons, streaming, open source projects, new technologies, just...

What do you use to implement the notifications feature in your app?

I try to add a notification system on a personal app that I'm working on during this period of containment due to covid-19 :D. I tried websocket (first time I use it and I'm not sure if it is the best solution or not) but I just have some thoughts an...

What's the decision that your company took face to COVID-19?

Where can I find the source code of different api of ecmascript 2015 or any different version?

I'm trying to see how console.time works and see the source code of this function, however I didn't find any link or information about source code of es6. I found the tc39 profile on github but I didn't find any repository about the es6. Anyone has ...

How you write unit tests to test a mongodb database?

I'm trying to write unit tests in order to check if a database connection is ok or not and verify the existence of db, collections, insert, update and so on. However, when I consult the jest documentation I found this guide. It uses a jest-mongodb pa...

Does anyone has a suggestion of book to read in any field (computer science, software engineering, etc...) ?

Is it normal that the performance of facebook website is low when testing it with Audits?

I'm trying to test my react application using the Audits tool of google chrome. I took a look of the performance of another sites to discover the performance. I tried facebook website; I check Desktop device, and all the checkbox audits then I choose...

How to mock an async action creator in redux with jest?

I'm trying to write a unit test for a redux async action creator using jest. asyncActions.js: const startSignInRequest = () => ({ type: START_SIGNIN_REQUEST }); // action creator to dispatch the success of sign In export const signInSucceded = use...