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How to check for null in Twig?
...ow) to check whether a variable is empty (null, false, empty string/array, etc):
{% if var|default is empty %}
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What are C++ functors and their uses?
... library, defining Is5() is quite simple. ANd you can create Is7(), Is32() etc. Further, that's just an example. THe functor could be much more complicate.
– James Curran
Sep 30 '17 at 2:57
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ASP.NET MVC 3 - Partial vs Display Template vs Editor Template
...ually used for data models (i.e. models that represent rows in a database, etc)
On the other hand Partial is view-centric in that you are mostly concerned with choosing the correct partial view. The view doesn't necessarily need a model to function correctly. It can just have a common set of markup...
Handling a colon in an element ID in a CSS selector [duplicate]
... browsers: Including IE6+ (and possibly earlier?), Firefox, Chrome, Opera, etc. It's part of the CSS2 standard.
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Why is there “data” and “newtype” in Haskell? [duplicate]
...abited by infinitely many values: undefined, T undefined, T (T undefined), etc.
– luqui
Jan 12 '14 at 22:46
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Formatting code snippets for blogging on Blogger [closed]
...Blogger and I frequently post code snippets in C / C# / Java / XML etc. but I find the snippet gets "mangled".
16 A...
Subprocess changing directory
... example, to execute ls in the root directory, you either can do
wd = os.getcwd()
os.chdir("/")
subprocess.Popen("ls")
os.chdir(wd)
or simply
subprocess.Popen("ls", cwd="/")
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Pass complex parameters to [Theory]
...anted to run a series of 'test users' through some tests - but [ClassData] etc. seemed overkill for what I needed (because the list of items was localized to each test).
So I did the following, with an array inside the test - indexed from the outside:
[Theory]
[InlineData(0)]
[InlineData(1)]
[Inli...
Is System.nanoTime() completely useless?
... code that uses nanoTime() for timed blocking, interval waiting, timeouts, etc. should preferably treat negative time differences (timeouts) as zeros rather than throw exceptions. This practice is also preferable because it is consistent with the behaviour of all timed wait methods in all classes in...
Android: How to put an Enum in a Bundle?
...an be super slow and does not scale to arrays of things that contain enum, etc. See stackoverflow.com/a/5551155/175156
– yincrash
Jun 18 '14 at 19:30
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