As a developer with 10 years of experience, I love using the shell. The commands never change, I can create custom shor

If you’re building an app that contains any kind of real-time communication (chat, games etc), it’s likely that you’ll end up using WebSockets. They give you full-duplex (two-way) communication with another host, contrary to HTTP which adopts a Request-Response model.,However, the YouTube advertising platform is an auction-based system. Therefore, if many advertisers want to show their ads on your videos, you will likely earn more per view.,For example, when you upload a new video, the more subscribers you have, the more views you will get shortly after uploading. In theory, this also helps the YouTube algorithm decide if your video is worthy of being promoted or not.,Every shell has a prompt. The prompt is what is written before your cursor. It signalizes that you can enter a command and gives useful context information. In the example above, the prompt contains the user name moose , the current computer pc08 , the current working directory ~/GitHub/MartinThoma/flake8-simplify , the active git branch feature/19 and the fact that there are modifications ±.,The shell stores the history of entered commands, defines how you set environment variables, how you switch the current directory. Examples for shells on Linux are ZSH, Bash, fish. On Windows, the typical shells are PowerShell. You can see which shell you are running by executing echo $0 . On Linux, it’s most likely Bash.,Three Linux shells (ZSH, Bash, fish) within the Gnome Terminal. I’ve heavily customized the ZSH shell; Bash and fish show the default. You can see that fish has an in-line autosuggestion feature that the two other shells lack. Image by Martin Thoma.,Since I haven’t uploaded any new videos in the last year, I haven’t benefited from the additional views that would come from having new content pushed to my new subscribers right after I upload.,In this case, a channel within the same niche with a much lower subscriber count could theoretically earn more revenue than the channel with a higher subscriber count if the smaller channel’s videos get more views.,The terminal is where you set the font face, font size, color schemes, support for multiple tabs. Examples for terminal emulators are GNOME terminal, Konsole on KDE, Terminator, and XTerm. On Linux, I recommend keeping the default. On Windows, the Windows Terminal is awesome. On Mac, I’ve heard good things about iTerm 2.,Four terminal emulators on Linux (Gnome Terminal, Konsole, XTerm, Terminator). XTerm does not directly support tabs. The others have 2 tabs open. All of them run the Bash shell. The image was created by Martin Thoma.,According to Media Shark, the average CPM on YouTube is between $6 and $8. However, since my channel is focused on education and “how-to” type content, my current CPM is around $90 per thousand views.,In any case, this is fine for our purposes. But what happens if props.onClick causes the app to navigate to a new page? This button will unmount, and, consequently, setLoading(false) gets called. In general, you should never update the state of an unmounted component, as this can cause memory leaks.,For example, right now, a lot of advertisers are using YouTube ads to sell educational programs. If you created a video on “how to buy stocks for beginners,” people who have created investing programs will potentially compete to show their ads on your video.,Inheritance flows are set to speed up. The population structure in most rich countries bulges outwards for the baby-boomer generation and then again for their children, many of whom are millennials. Every five years $1.3trn in investible assets, or 5% of the stock, passes down the generations in America. The pace of the wealth transfer will probably double by 2036–40 as boomers die. According to Cerulli Associates, a research firm, millennials will inherit $22trn by 2042.,I’ve made $4,418.40 and gained 5,000 subscribers since the beginning of 2020. However, as you can see from the income earned each month in the image above, gaining additional subscribers did not impact my revenue.