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Openssl is not recognized as an internal or external command
...integrated with Facebook. In one of Facebook's tutorials, I found this command:
15 Answers
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Unit testing that events are raised in C# (in order)
I have some code that raises PropertyChanged events and I would like to be able to unit test that the events are being raised correctly.
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How to convert a string to utf-8 in Python
...icode'>)
^ This is the difference between a byte string (plain_string) and a unicode string.
>>> s = "Hello!"
>>> u = unicode(s, "utf-8")
^ Converting to unicode and specifying the encoding.
In Python 3
All strings are unicode. The unicode function does not exist anymore. See ...
Launching Spring application Address already in use
...
Spring Boot uses embedded Tomcat by default, but it handles it differently without using tomcat-maven-plugin. To change the port use --server.port parameter for example:
java -jar target/gs-serving-web-content-0.1.0.jar --server.port=8181
Update. Alternatively put server.por...
What is the 'instanceof' operator used for in Java?
...);,
animal instanceof Dog // false
because Animal is a supertype of Dog and possibly less "refined".
And,
dog instanceof Cat // does not even compile!
This is because Dog is neither a subtype nor a supertype of Cat, and it also does not implement it.
Note that the variable used for dog above...
IntelliJ: Never use wildcard imports
... obvious why you'd want to disable this: To force IntelliJ to include each and every import individually. It makes it easier for people to figure out exactly where classes you're using come from.
Click on the Settings "wrench" icon on the toolbar, open "Imports" under "Code Style", and check the "U...
How to perform a mysqldump without a password prompt?
I would like to know the command to perform a mysqldump of a database without the prompt for the password.
13 Answers
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Determine what attributes were changed in Rails after_save callback?
...hanged? are only useful before the model is saved, the way I'm currently (and unsuccessfully) trying to do so is as follows:
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How to store arbitrary data for some HTML tags
...n example: links which send an AJAX request to get the content of articles and then display that data in a div. Obviously in this example, I need each link to store an extra bit of information: the id of the article. The way I've been handling it in case was to put that information in the href link ...
Right HTTP status code to wrong input
...es:
The 422 (Unprocessable Entity) status code means the server understands the content type of the request entity (hence a 415 (Unsupported Media Type) status code is inappropriate), and the syntax of the request entity is correct (thus a 400 (Bad Request) status code is inappropriate) but was ...