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What are free monads?
I've seen the term Free Monad pop up every now and then for some time, but everyone just seems to use/discuss them without giving an explanation of what they are. So: what are free monads? (I'd say I'm familiar with monads and the Haskell basics, but have only a very rough knowledge of cat...
Include all files in a folder in a single bundle
...include all files of a folder including all the files of the childfolders (and their childfolders etc.)?
1 Answer
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Print All JVM Flags
...IT options.
Before dive into sources you can skim over following extracts and find suitable option faster:
https://chriswhocodes.com/ (OracleJDK 6/7/8/9/10/11/12, OpenJDK 8/9/10/11, Graal CE/EE, OpenJ9, Zing)
http://jvm-options.tech.xebia.fr/
http://www.pingtimeout.fr/2012/05/jvm-options-compl...
Creation timestamp and last update timestamp with Hibernate and MySQL
... certain Hibernate entity we have a requirement to store its creation time and the last time it was updated. How would you design this?
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Underscore prefix for property and method names in JavaScript
...by convention but are still public.
This syntax tries to be both terse and intuitive, although it's rather different from other programming languages.
Why was the sigil # chosen, among all the Unicode code points?
@ was the initial favorite, but it was taken by decorators. TC39 con...
When do you use POST and when do you use GET?
...or destructive actions such as creation (I'm aware of the irony), editing, and deletion, because you can't hit a POST action in the address bar of your browser. Use GET when it's safe to allow a person to call an action. So a URL like:
http://myblog.org/admin/posts/delete/357
Should bring you to ...
Windows batch file file download from a URL
...-OutFile package.zip
From a batch file they are called:
powershell -Command "(New-Object Net.WebClient).DownloadFile('http://www.example.com/package.zip', 'package.zip')"
powershell -Command "Invoke-WebRequest http://www.example.com/package.zip -OutFile package.zip"
(PowerShell 2.0 is available...
Tool for comparing 2 binary files in Windows [closed]
...ndows, it will either appear not to start, or will very briefly show a command prompt window, which quickly disappears. Open up a command prompt and run the program from there to see what arguments it accepts, and then use it from the command prompt accordingly.
– nonoitall
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What does the question mark in Java generics' type parameter mean?
...eloping in Java for about 4 years, but have never had a very strong understanding of what this style of code is supposed to indicate.
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Difference between “@id/” and “@+id/” in Android
In @+id/ the plus symbol + instructs to create a new resource name and add in to the R.java file but what about @id/ ? From the documentation of ID : when referencing an Android resource ID , you do not need the plus symbol, but must add the android package namespace, like so:
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