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How to interpret API documentation function parameters?
...se of use across API documentations. However, there is a lot of cross over from older man style syntax conventions, to the modern API/namespace conventions.
Typically, the type of person who works with API, will have some background in development or at the least a 'power user'. These types of users...
How to format Joda-Time DateTime to only mm/dd/yyyy?
.../dd/YYYY");
String strDateOnly = fmt.print(dateTime);
I got part of this from here.
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Why 0 is true but false is 1 in the shell?
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However in Bash, any nonzero value is an error, and we may use any number from 1-255 to represent an error. This means we can have many different kinds of errors. 1 is a general error, 126 means that a file cannot be executed, 127 means 'command not found', etc. Here's a list of Bash Exit Codes Wit...
Fully backup a git repo?
...l-to-repo.git
Then when you want to refresh the backup: git remote update from the clone location.
This backs up all branches and tags, including new ones that get added later, although it's worth noting that branches that get deleted do not get deleted from the clone (which for a backup may be a ...
What is the difference between ? and Object in Java generics?
...ap<String, Object>. Say you want to write a method that accepts maps from Strings to anything: If you would write
public void foobar(Map<String, Object> ms) {
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}
you can't supply a HashMap<String, String>. If you write
public void foobar(Map<String, ?> ms) {
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How to include (source) R script in other scripts
I've created a utility R script, util.R, which I want to use from other scripts in my project.
What is the proper way to ensure that the function this script defines are available to function in my other scripts?
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In Go's http package, how do I get the query string on a POST request?
I'm using the http package from Go to deal with POST request. How can I access and parse the content of the query string from the Request object ? I can't find the answer from the official documentation.
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Checking if an object is null in C#
...f course you want to use them ...)
For not null use if (obj is object) and from C# 9 you can also use if (obj is not null)
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Google Guava isNullOrEmpty for collections
...question is about the capabilities of the Guava library, and the answer is from one of the lead developer of Guava, the answer is kinda implied: "No, Guava doesn't have that". The answer may be improved by starting with that statement though :)
– Grundlefleck
N...
Clear a terminal screen for real
... user into thinking the screen has been cleared...you can still see output from the previous commands when you scroll using the mouse. This makes life difficult when you are drowning in a tsunami of text.
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