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What is a None value?

I have been studying Python, and I read a chapter which describes the None value, but unfortunately this book isn't very clear at some points. I thought that I would find the answer to my question, if I share it there. ...
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What is a patch in git version control?

I am new to both git and version control so I am trying to figure out what a patch is and how is it different from the rest of activities I do in git? ...
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What is the difference between CMD and ENTRYPOINT in a Dockerfile?

In Dockerfiles there are two commands that look similar to me: CMD and ENTRYPOINT . But I guess that there is a (subtle?) difference between them - otherwise it would not make any sense to have two commands for the very same thing. ...
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How to convert JSON to XML or XML to JSON?

...on.NET framework, is it possible to convert a string in JSON to XML format and viceversa? 13 Answers ...
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Displaying the build date

... have an app displaying the build number in its title window. That's well and good except it means nothing to most of the users, who want to know if they have the latest build - they tend to refer to it as "last Thursday's" rather than build 1.0.8.4321. ...
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Javascript: negative lookbehind equivalent?

...le Chrome 62.0 ✔️ Microsoft Edge 79.0 ✔️ Node.js 6.0 behind a flag and 9.0 without a flag ✔️ Deno (all versions) ✔️ SpiderMonkey ✔️ Mozilla Firefox 78.0 ????️ JavaScriptCore: Apple is working on it ????️ Apple Safari ????️ iOS WebView (all browsers on iOS + iPadOS) ...
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Java generics type erasure: when and what happens?

...metadata in the class file to say whether or not a method/type is generic, and what the constraints are etc. But when generics are used, they're converted into compile-time checks and execution-time casts. So this code: List<String> list = new ArrayList<String>(); list.add("Hi"); String...
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JS Client-Side Exif Orientation: Rotate and Mirror JPEG Images

...on.js through canvas operations. Hope this saves somebody else some time, and teaches the search engines about this open source gem :) share | improve this answer | follow ...
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How do I control how Emacs makes backup files?

Emacs puts backup files named foo~ everywhere and I don't like having to remember to delete them. Also, if I edit a file that has a hard link somewhere else in the file system, the hard link points to the backup when I'm done editing, and that's confusing and awful. How can I either eliminate th...
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How do you run a Python script as a service in Windows?

...e which provides a higher level interface for operations on these objects, and the other programs to access the objects through that service. ...