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What's the (hidden) cost of Scala's lazy val?
One handy feature of Scala is lazy val , where the evaluation of a val is delayed until it's necessary (at first access).
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Set a persistent environment variable from cmd.exe
...e displayed if you print the usage (setx /?), in particular:
2) On a local system, variables created or modified by this tool will be available in future command windows but not in the current CMD.exe command window.
3) On a remote system, variables created or modified by this tool will be ...
background function in Python
...got a Python script that sometimes displays images to the user. The images can, at times, be quite large, and they are reused often. Displaying them is not critical, but displaying the message associated with them is. I've got a function that downloads the image needed and saves it locally. Right no...
Why does 'continue' behave like 'break' in a Foreach-Object?
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From what OP is saying apparently continue can be used to simulate a break in ForEach-Object :)
– Richard Hauer
Jun 19 '15 at 7:56
7
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How do I programmatically shut down an instance of ExpressJS for testing?
I'm trying to figure out how to shut down an instance of Express. Basically, I want the inverse of the .listen(port) call - how do I get an Express server to STOP listening, release the port, and shutdown cleanly?
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Multiple queries executed in java in single statement
...operty to allow multiple queries,
separated by a semi-colon by default.
By calling a stored procedure that returns cursors implicit.
Following examples demonstrate the above two possibilities.
Example 1: ( To allow multiple queries ):
While sending a connection request, you need to append a ...
Remote Connections Mysql Ubuntu
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To expose MySQL to anything other than localhost you will have to have the following line
For mysql version 5.6 and below
uncommented in /etc/mysql/my.cnf and assigned to your computers IP address and not loopback
For mysql version 5.7 and above
uncommented in ...
Override configured user for a single git commit
...is will set the configuration in this repository only.
Alternatively, you can do this for only a single command, using the -c option:
git -c "user.name=Your Name" -c "user.email=Your email" commit ...
But I think it's better to just use the config options above.
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How do I pull my project from github?
...d should I invoke under my username to checkout my project again so that I can push my latest changes to github under my account.
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Separation of JUnit classes into special test package?
...the same package as the project classes they test, but in a different physical directory, like:
myproject/src/com/foo/Bar.java
myproject/test/com/foo/BarTest.java
In a Maven project it would look like this:
myproject/src/main/java/com/foo/Bar.java
myproject/src/test/java/com/foo/BarTest.java
T...