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Why does C# have break if it's not optional? [duplicate]
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answered Jun 24 '10 at 11:29
Alex K.Alex K.
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Normalizing mousewheel speed across browsers
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Exit a Script On Error
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answered Dec 7 '10 at 21:13
Byron WhitlockByron Whitlock
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CSS hide scroll bar if not needed
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answered Sep 10 '13 at 10:47
RJoRJo
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Implementing slicing in __getitem__
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answered May 29 '10 at 22:56
Ignacio Vazquez-AbramsIgnacio Vazquez-Abrams
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How to check if variable's type matches Type stored in a variable
...rom:
bool b9 = typeof(Tiger).IsAssignableFrom(x.GetType()); // true
bool b10 = typeof(Animal).IsAssignableFrom(x.GetType()); // true! A variable of type Animal may be assigned a Tiger.
or with the type variable
bool b11 = t.IsAssignableFrom(x.GetType()); // true
bool b12 = t.IsAssignableFrom(x.Get...
Erasing elements from a vector
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edited Sep 26 '19 at 10:20
Fabio says Reinstate Monica
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Apply a function to every row of a matrix or a data frame
... 3 4
[3,] 5 6
R> apply(M, 1, function(x) 2*x[1]+x[2])
[1] 4 10 16
R>
This takes a matrix and applies a (silly) function to each row. You pass extra arguments to the function as fourth, fifth, ... arguments to apply().
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twig: IF with multiple conditions
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Why does `a == b or c or d` always evaluate to True?
...gt; ast.parse("if a == b or c or d or e: ...")
<_ast.Module object at 0x1031ae6a0>
>>> ast.dump(_)
"Module(body=[If(test=BoolOp(op=Or(), values=[Compare(left=Name(id='a', ctx=Load()), ops=[Eq()], comparators=[Name(id='b', ctx=Load())]), Name(id='c', ctx=Load()), Name(id='d', ctx=Load(...