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Remove all whitespaces from NSString
I've been trying to get rid of the white spaces in an NSString , but none of the methods I've tried worked.
11 Answers
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Importing data from a JSON file into R
Is there a way to import data from a JSON file into R? More specifically, the file is an array of JSON objects with string fields, objects, and arrays. The RJSON Package isn't very clear on how to deal with this http://cran.r-project.org/web/packages/rjson/rjson.pdf .
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How to append to a file in Node?
I am trying to append a string to a log file. However writeFile will erase the content each time before writing the string.
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How to do parallel programming in Python?
For C++, we can use OpenMP to do parallel programming; however, OpenMP will not work for Python. What should I do if I want to parallel some parts of my python program?
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How do you check if a JavaScript Object is a DOM Object?
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34 Answers
34
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Constructors vs Factory Methods [closed]
When modelling classes, what is the preferred way of initializing:
10 Answers
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In C++, what is a virtual base class?
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Virtual base classes, used in virtual inheritance, is a way of preventing multiple "instances" of a given class appearing in an inheritance hierarchy when using multiple inheritance.
Consider the following scenario:
class A { public: void Foo() {} };
class B : public A {};
class C : ...
Difference between object and class in Scala
...rnet and have noticed in some examples an object is declared at the start of the example.
13 Answers
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Android and setting width and height programmatically in dp units
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You'll have to convert it from dps to pixels using the display scale factor.
final float scale = getContext().getResources().getDisplayMetrics().density;
int pixels = (int) (dps * scale + 0.5f);
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