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ViewDidAppear is not called when opening app from background
I have a View Controller in which my value is 0 (label) and when I open that View Controller from another ViewController I have set viewDidAppear to set value 20 on label. It works fine but when I close my app and than again I open my app but the value doesn't change because viewDidLoad , vie...
Why is it impossible to build a compiler that can determine if a C++ function will change the value
...er any given program will terminate. This is known as the halting problem, and it's one of those things that's not computable.
To be clear, you can write a compiler that can determine that a function does change the variable in some cases, but you can't write one that reliably tells you that the fu...
Passing a method as a parameter in Ruby
...ult argument in a block declaration like that. So you need to use a splat and setup the default in the proc code itself.
Or, depending on your scope of all this, it may be easier to pass in a method name instead.
def weightedknn(data, vec1, k = 5, weightf = :gaussian)
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weight = self.send...
How to pass variable from jade template file to a script file?
...this working also by wrapping the local variable in the template in quotes and the #{} indicator.
– Askdesigners
Feb 11 '15 at 20:02
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How do I filter an array with AngularJS and use a property of the filtered object as the ng-model at
If I have an array of objects, and I want to bind the Angular model to a property of one of the elements based on a filter, how do I do that? I can explain better with a concrete example:
...
Can Json.NET serialize / deserialize to / from a stream?
I have heard that Json.NET is faster than DataContractJsonSerializer, and wanted to give it a try...
5 Answers
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How to do something to each file in a directory with a batch script
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Command line usage:
for /f %f in ('dir /b c:\') do echo %f
Batch file usage:
for /f %%f in ('dir /b c:\') do echo %%f
Update: if the directory contains files with space in the names, you need to change the delimiter the for...
SVN Repository Search [closed]
...VN respository for code snippets? I found 'FishEye' but the cost is 1,200 and well outside my budget.
14 Answers
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Find an element in DOM based on an attribute value
...there is any DOM API which search for an element with given attribute name and attribute value:
7 Answers
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How to increase the vertical split window size in Vim
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CTRL-W >
and
CTRL-W <
to make the window wider or narrower.
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