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How to pass a function as a parameter in Java? [duplicate]
...parated list of formal parameters enclosed in parentheses. The CheckPerson.test method contains one parameter, p,
which represents an instance of the Person class.Note: You
can omit the data type of the parameters in a lambda expression. In
addition, you can omit the parentheses if there is on...
How to create a unique index on a NULL column?
...ot, if using the PK gives the index something more to work with? Going to test this weekend on a big table and see.
– David Storfer
Oct 7 '11 at 20:31
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How to deal with persistent storage (e.g. databases) in Docker
...: "/mnt/sda1/var/lib/docker/volumes/mypthonapp_db-data/_data"
}
]
Some testing:
# Start the containers
docker-compose up -d
# .. input some data into the database
docker-compose run --rm web python manage.py migrate
docker-compose run --rm web python manage.py createsuperuser
...
# Stop and r...
Are the shift operators () arithmetic or logical in C?
...ements an arithmetic shift on signed values.
Basically you need to either test your compiler or not rely on it. My VS2008 help for the current MS C++ compiler says that their compiler does an arithmetic shift.
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Good examples of MVVM Template
...t this way seems more straightforward than working around it. Easy to unit test as well.
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Rebasing and what does one mean by rebasing pushed commits
...ID (in this case, a, b, c, and d). You'll notice that d is currently the latest commit (or HEAD) of the master branch.
Here, we have two branches: master and my-branch. You can see that master and my-branch both contain commits a and b, but then they start to diverge: master contains c and d, whil...
What's the role of GetHashCode in the IEqualityComparer in .NET?
...tes the hashcode and jumps to that location. The Equals method is a better test of equality, but cannot be used to map an object into an address space.
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How to change the style of alert box?
...n {
color:green;
}
And HTML file:
<input type="button" value = "Test the alert" onclick="alert('Alert this pages');" />
And also View this DEMO: JSFIDDLE and DEMO RESULT IMAGE
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What is the difference between “expose” and “publish” in Docker?
...ll be able to access a service you may start inside that container.
How to test this:
I've used the following Dockerfile. Basically, I start with ubuntu and install a tiny web-server:
FROM ubuntu
RUN apt-get update && apt-get install -y mini-httpd
I build the image as "testexpose" and run a...
How do you reverse a string in place in JavaScript?
...he tilde is applied to the `a` instead of the `n`? WAT.
A good string to test string reverse implementations is the following:
'foo ???? bar mañana mañana'
Why? Because it contains an astral symbol (????) (which are represented by surrogate pairs in JavaScript) and a combining mark (the ñ ...