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Define a lambda expression that raises an Exception
...ollowing also works: lambda: 1 / 0. You'll just end up with a ZeroDivisionError being thrown instead of a regular exception. Bear in mind that if the exception is allowed to propogate, it may look strange to someone debugging your code to start seeing a bunch of ZeroDivisionErrors.
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What is the purpose of “return await” in C#?
...y doesn't compile. Assuming the return type of SecondAwait is `string, the error message is: "CS4016: Since this is an async method, the return expression must be of type 'string' rather than 'Task<string>'".
– svick
Nov 23 '16 at 12:17
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Why use Object.prototype.hasOwnProperty.call(myObj, prop) instead of myObj.hasOwnProperty(prop)?
... For example, host objects in IE implemented as ActiveX objects will throw errors if treated as native objects (hence why try..catch is used to initialise MS XMLHttpRequest objects). Some DOM objects (like NodeLists in IE in quirks mode) if passed to Array methods will throw errors, DOM objects in I...
How to hide action bar before activity is created, and then show it again?
... @AlexSemeniuk When I use that line in the manifest, I get this error: error: Error: No resource found that matches the given name (at 'theme' with value '@android:style/ Theme.NoActionBar').
– Si8
Aug 20 '13 at 13:02
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Join/Where with LINQ and Lambda
...uble with a query written in LINQ and Lambda. So far, I'm getting a lot of errors here's my code:
9 Answers
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must appear in the GROUP BY clause or be used in an aggregate function
...pain is 5 and for canada the best result is 2. It is true, and there is no error.
If we need to display wmname also, we have to answer the question: "What is the RULE to choose wmname from resulting set?" Let's change the input data a bit to clarify the mistake:
cname | wmname | avg ...
How to mock an import
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A.py:
import B
Note B.py does not exist, but when running test.py no error is returned and print(A.B.__name__) prints mock_B. You still have to create a mock_B.py where you mock B's actual functions/variables/etc. Or you can just assign a Mock() directly:
test.py:
import sys
sys.modules['B']...
ReSharper warns: “Static field in generic type”
...jority of cases, having a static field in a generic type
is a sign of an error. The reason for this is that a static field in a
generic type will not be shared among instances of different close
constructed types. This means that for a generic class C<T> which
has a static field X, the...
Why does an SSH remote command get fewer environment variables then when run manually? [closed]
... arguments and without the -c option whose standard input
and error are both connected to terminals (as determined
by isatty(3)), or one started with the -i option. PS1 is
set and $- includes i if bash is interactive, allowing a
shell script or a startup file ...
Download File Using Javascript/jQuery
...r the download starts or even inform the user in a friendly manner that an error has occurred. See the Demo for an example of this. Hope this helps someone!
Here is a simple use case demo using the plugin source with promises. The demo page includes many other, 'better UX' examples as well.
$.fil...