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Cocoa Core Data efficient way to count entities
...just solved this task with selecting all with NSFetchedResultsController and getting the count of the NSArray ! I am sure this is not the best way...
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Invoking a static method using reflection
...ect of type Class , but I am not able to create an instance of that class and also not able to invoke the static method main .
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How to debug stream().map(…) with lambda expressions?
In our project we are migrating to java 8 and we are testing the new features of it.
6 Answers
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Controlling mouse with Python
...s one control the mouse cursor in Python, i.e. move it to certain position and click, under Windows?
14 Answers
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ASP.Net MVC Html.HiddenFor with wrong value
... modelState[fullName].Value = new ValueProviderResult(metadata.Model, Convert.ToString(metadata.Model), currentValue.Culture);
}
else
{
modelState[fullName] = new ModelState
{
Value = new ValueProviderResult(metadata.Model, Convert...
How and when to use ‘async’ and ‘await’
From my understanding one of the main things that async and await do is to make code easy to write and read - but is using them equal to spawning background threads to perform long duration logic?
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How can I do test setup using the testing package in Go
...outlined here in the Main section:
TestMain runs in the main goroutine and can do whatever setup and
teardown is necessary around a call to m.Run. It should then call
os.Exit with the result of m.Run
It took me some time to figure out that this means that if a test contains a function func...
Why is there no std::stou?
... pat answer would be that the C library has no corresponding “strtou”, and the C++11 string functions are all just thinly veiled wrappers around the C library functions: The std::sto* functions mirror strto*, and the std::to_string functions use sprintf.
Edit: As KennyTM points out, both stoi...
What is the difference between encode/decode?
... for instance transfer it over the network, or save it to a disk file.
To convert a string of bytes to a unicode string is known as decoding. Use unicode('...', encoding) or '...'.decode(encoding).
Example:
>>> u'æøå'
u'\xc3\xa6\xc3\xb8\xc3\xa5' # the interpreter prints the uni...
How do I pass a class as a parameter in Java?
Is there any way to pass class as a parameter in Java and fire some methods from that class?
10 Answers
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