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do { … } while (0) — what is it good for? [duplicate]
I've been seeing that expression for over 10 years now. I've been trying to think what it's good for. Since I see it mostly in #defines, I assume it's good for inner scope variable declaration and for using breaks (instead of gotos.)
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Run task only if host does not belong to a group
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201
Here's another way to do this:
- name: my command
command: echo stuff
when: "'groupname' no...
How do I convert a String to an InputStream in Java?
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1433
Like this:
InputStream stream = new ByteArrayInputStream(exampleString.getBytes(StandardChar...
@media media query and ASP.NET MVC razor syntax clash
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edited Mar 6 '18 at 17:32
David Makogon
62.8k1717 gold badges121121 silver badges170170 bronze badges
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How to check if anonymous object has a method?
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answered Jun 9 '10 at 15:48
Sean VieiraSean Vieira
134k2828 gold badges272272 silver badges265265 bronze badges
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Dictionary vs Object - which is more efficient and why?
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159
Have you tried using __slots__?
From the documentation:
By default, instances of both old and...
Git commit date
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281
The
show
command may be what you want. Try
git show -s --format=%ci <commit>
Other form...
how to change directory using Windows command line
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answered Jul 19 '13 at 19:27
Mark NenadovMark Nenadov
5,01355 gold badges2020 silver badges2727 bronze badges
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Passing a list of kwargs?
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161
Yes. You do it like this:
def method(**kwargs):
print kwargs
keywords = {'keyword1': 'foo'...
Cannot pass null argument when using type hinting
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PHP 7.1 or newer (released 2nd December 2016)
You can explicitly declare a variable to be null with this syntax
function foo(?Type $t) {
}
this will result in
$this->foo(new Type()); // ok
$this->foo(null); // ok
$this-&...