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What should go into an .h file?
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Header files (.h) are designed to provide the information that will be needed in multiple files. Things like class declarations, function prototypes, and enumerations typically go in header files. In a word, "definitions".
Code files (.cpp) are designed to provide the impl...
How the single threaded non blocking IO model works in Node.js
...er, but I'm interested in how the single threaded non blocking IO model works.
After I read the article understanding-the-node-js-event-loop , I'm really confused about it.
It gave an example for the model:
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What are dictionary view objects?
...at their name says: views are simply like a window on the keys and values (or items) of a dictionary. Here is an excerpt from the official documentation for Python 3:
>>> dishes = {'eggs': 2, 'sausage': 1, 'bacon': 1, 'spam': 500}
>>> keys = dishes.keys()
>>> values = d...
Java JUnit: The method X is ambiguous for type Y
I had some tests working fine. Then, I moved it to a different package, and am now getting errors. Here is the code:
3 Answ...
ANTLR: Is there a simple example?
...ANTLR, but after spending a few hours reviewing the examples at the antlr.org site, I still can't get a clear understanding of the grammar to Java process.
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What does the “assert” keyword do? [duplicate]
What does assert do?
For example in the function:
8 Answers
8
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Get time difference between two dates in seconds
...w Date();
var seconds = (endDate.getTime() - startDate.getTime()) / 1000;
Or even simpler (endDate - startDate) / 1000 as pointed out in the comments unless you're using typescript.
The explanation
You need to call the getTime() method for the Date objects, and then simply subtract them and divide...
What is the difference between an abstract function and a virtual function?
...on and a virtual function? In which cases is it recommended to use virtual or abstract? Which one is the best approach?
27...
Casting vs using the 'as' keyword in the CLR
When programming interfaces, I've found I'm doing a lot of casting or object type conversion.
18 Answers
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Virtual Memory Usage from Java under Linux, too much memory used
...but it's largely meaningless, and usually based on looking at the wrong information. The usual phrasing is something like "Hello World on Java takes 10 megabytes! Why does it need that?" Well, here's a way to make Hello World on a 64-bit JVM claim to take over 4 gigabytes ... at least by one form of...