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How to check if variable's type matches Type stored in a variable
...ns.
The is operator does not check if the runtime type of the operand is exactly the given type; rather, it checks to see if the runtime type is compatible with the given type:
class Animal {}
class Tiger : Animal {}
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object x = new Tiger();
bool b1 = x is Tiger; // true
bool b2 = x is Animal; ...
Does JavaScript have a method like “range()” to generate a range within the supplied bounds?
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Using custom std::set comparator
...ying to change the default order of the items in a set of integers to be lexicographic instead of numeric, and I can't get the following to compile with g++:
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Why are C# 3.0 object initializer constructor parentheses optional?
It seems that the C# 3.0 object initializer syntax allows one to exclude the open/close pair of parentheses in the constructor when there is a parameterless constructor existing. Example:
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Generating random whole numbers in JavaScript in a specific range?
... random whole numbers between two specified variables in JavaScript, e.g. x = 4 and y = 8 would output any of 4, 5, 6, 7, 8 ?
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How to output something in PowerShell
... is PowerShell is a thing of beauty - and one its greatest strengths. For example, the common Hello, World! application is reduced to a single line:
"Hello, World!"
It creates a string object, assigns the aforementioned value, and being the last item on the command pipeline it calls the .toString...
Python how to write to a binary file?
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This is exactly what bytearray is for:
newFileByteArray = bytearray(newFileBytes)
newFile.write(newFileByteArray)
If you're using Python 3.x, you can use bytes instead (and probably ought to, as it signals your intention better). B...
unbound method f() must be called with fibo_ instance as first argument (got classobj instance inste
... are calling the method on the class rather than on an instance, which is exactly what was happening in this case because you hadn't instantiated the class.
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Run an OLS regression with Pandas Data Frame
... the values of column A from the values in columns B and C. Here is a toy example:
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Why does the is operator return false when given null?
...ers. The question that the is operator answers is the third question. y is X does not ask "is y a legal value of a variable of type X?" It asks "Is y a valid reference to an object of type X?" Since a null reference is not a valid reference to any object of any type, the answer is "no". That drivewa...