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Difference between @Before, @BeforeClass, @BeforeEach and @BeforeAll
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The code marked @Before is executed before each test, while @BeforeClass runs once before the entire test fixture. If your test class has ten tests, @Before code will be executed ten times, but @BeforeClass will be executed only once.
In genera...
When to dispose CancellationTokenSource?
The class CancellationTokenSource is disposable. A quick look in Reflector proves usage of KernelEvent , a (very likely) unmanaged resource.
Since CancellationTokenSource has no finalizer, if we do not dispose it, the GC won't do it.
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Downloading a file from spring controllers
... I thought would be a combination of freemarker and a PDF generation framework like iText. Any better way?
14 Answers
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Does Internet Explorer 8 support HTML 5?
Is there any HTML5 support in IE8? Is it on the IE8 roadmap?
13 Answers
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What is a Y-combinator? [closed]
A Y-combinator is a computer science concept from the “functional” side of things. Most programmers don't know much at all about combinators, if they've even heard about them.
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Stopping fixed position scrolling at a certain point?
... say when it is 250px from the top of the page, is this possible? Any help or advice would be helpful thanks!
13 Answers
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Merging two images in C#/.NET
...e(/*somekindofpath*/,
System.Drawing.Imaging.ImageFormat.Jpeg);
}
catch (Exception ex) { }
}
}
share
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How do I validate a date string format in python?
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>>> import datetime
>>> def validate(date_text):
try:
datetime.datetime.strptime(date_text, '%Y-%m-%d')
except ValueError:
raise ValueError("Incorrect data format, should be YYYY-MM-DD")
>>&g...
X-Frame-Options Allow-From multiple domains
...as been removed from the Web standards. Though some browsers may still support it, it is in the process of being dropped. Do not use it in old or new projects. Pages or Web apps using it may break at any time.
The modern alternative is the Content-Security-Policy header, which along many other pol...
How to make rpm auto install dependencies
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Create a (local) repository and use yum to have it resolve the dependencies for you.
The CentOS wiki has a nice page providing a how-to on this. CentOS wiki HowTos/CreateLocalRepos.
Summarized and further minimized (not ideal, but quickest):
C...