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Does the Java &= operator apply & or &&?
Assuming
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Can a class member function template be virtual?
I have heard that C++ class member function templates can't be virtual. Is this true?
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Downcasting in Java
Upcasting is allowed in Java, however downcasting gives a compile error.
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Algorithm to generate all possible permutations of a list?
Say I have a list of n elements, I know there are n! possible ways to order these elements. What is an algorithm to generate all possible orderings of this list? Example, I have list [a, b, c]. The algorithm would return [[a, b, c], [a, c, b,], [b, a, c], [b, c, a], [c, a, b], [c, b, a]].
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What is the purpose of mock objects?
I am new to unit testing, and I continously hear the words 'mock objects' thrown around a lot. In layman's terms, can someone explain what mock objects are, and what they are typically used for when writing unit tests?
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count the frequency that a value occurs in a dataframe column
I have a dataset
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What is the difference between Python's list methods append and extend?
What's the difference between the list methods append() and extend() ?
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Navigation in django
I've just done my first little webapp in django and I love it. I'm about to start on converting an old production PHP site into django and as part its template, there is a navigation bar.
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JavaScript function in href vs. onclick
I want to run a simple JavaScript function on a click without any redirection.
15 Answers
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What are the undocumented features and limitations of the Windows FINDSTR command?
The Windows FINDSTR command is horribly documented. There is very basic command line help available through FINDSTR /? , or HELP FINDSTR , but it is woefully inadequate. There is a wee bit more documentation online at https://docs.microsoft.com/en-us/windows-server/administration/windows-commands...