5G networks will revolutionise the Internet of Things (IoT). But it will take several years for the technology to cover most of the planet. Thanks to LoRaWAN, you don’t need to wait, says Sergiy Seletsky, IoT practice leader and senior solution architect at Intellias. According to Gartner, around 5.8 billion enterprise and automotive IoT endpoints […]
Monthly Archives: December 2020
Wireless communication systems usually employ radio as the underlying, physical basis to transport data from one device to another. Bluetooth technology is a radio communication technology, and radio technology is often seen as unreliable. With this in mind, a question arises can Bluetooth technology be described as reliable? Interference challenges One of the biggest issues […]
Recreating a popular app is a fun way to learn a lot of complex programming skills. We’ve released a full course on the freeCodeCamp.org YouTube channel that will teach you how to build an Instagram clone using React Native, Firebase Firestore, Firebase storage, Redux, and Expo. The app includes
Using Python microservices allows you to break up your apps into smaller parts that communicate with each other. This can make it simpler to scale the application based on the traffic. Also, the separation of concerns makes it easier to work on just one part of the app at a
ES11 has added a nullish coalescing operator which is denoted by double question marks, like this: ??. In this article, we will explore why it’s so useful and how to use it. Let’s get started. Background InformationIn JavaScript, there is a short-circuit logical OR operator ||. The || operator returns the first truthy
If you optimize your JavaScript code with these hacks, it can help you write cleaner code, save resources, and optimize your programming time. According to RedMonk, JavaScript is the most popular programming language. Furthermore, SlashData estimates that around 12.4 million developers use JavaScript, which also includes CoffeeScript and Microsoft’
In this article, I’ll discuss the secret to never forgetting how your project works, in three steps. If you’ve ever half-written a software project before taking a few days off, this is the article you’ll discover you needed when you reopen that IDE. Don’t worry, it’ll all come
freeCodeCamp.org is a 501(c)(3) donor-supported public charity. I built the first version of freeCodeCamp’s website in 2014. And now more than half a million people use freeCodeCamp every day. Our tiny nonprofit is able to help so many people thanks to clever use of technology and the
JavaScript is a multi-paradigm language and can be written following different programming paradigms. A programming paradigm is essentially a bunch of rules that you follow when writing code, to help you solve a particular problem. That’s what the four pillars are. They’re software design principles to help you write clean
This is a quick update on the state of the freeCodeCamp community heading into 2021. First, some metrics: In 2020 freeCodeCamp’s entire operating budget was only $498,521.With that humble budget, our nonprofit was able to deliver more than 1.3 BILLION minutes of instruction – the equivalent of