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Most useful NLog configurations [closed]
What are the best or most useful configurations for logging with NLog? (These can be simple or complex, as long as they're useful.)
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Error: Could not find or load main class [duplicate]
...my Java code, intended to allow me to interface Java with a shared object for Vensim, a simulation modeling package.
22 Ans...
What is the difference between atan and atan2 in C++?
...) is positive, we cannot distinguish, whether the angle was from the first or third quadrant and if it is negative, it could come from the second or fourth quadrant. So by convention, atan() returns an angle from the first or fourth quadrant (i.e. -π/2 <= atan() <= π/2), regardless of the or...
NSString property: copy or retain?
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For attributes whose type is an immutable value class that conforms to the NSCopying protocol, you almost always should specify copy in your @property declaration. Specifying retain is something you almost never want in such ...
Correct format specifier for double in printf
What is the correct format specifier for double in printf? Is it %f or is it %lf ? I believe it's %f , but I am not sure.
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What does ||= (or-equals) mean in Ruby?
...ling-list that discuss this issue.
Here's one: The definitive list of ||= (OR Equal) threads and pages
If you really want to know what is going on, take a look at Section 11.4.2.3 "Abbreviated assignments" of the Ruby Language Draft Specification.
As a first approximation,
a ||= b
is equivalent to
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What is the difference between window, screen, and document in Javascript?
I see these terms used interchangeably as the global environment for the DOM. What is the difference (if there is one) and when should I use each one?
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Why do you need explicitly have the “self” argument in a Python method?
...cit rather than based on a rule.
Additionally, since nothing is implied or assumed, parts of the implementation are exposed. self.__class__, self.__dict__ and other "internal" structures are available in an obvious way.
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Best way of invoking getter by reflection
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I think this should point you towards the right direction:
import java.beans.*
for (PropertyDescriptor pd : Introspector.getBeanInfo(Foo.class).getPropertyDescriptors()) {
if (pd.getReadMethod() != null && !"class".equals(pd.getName()))
System.out.println(pd.getReadMethod...
When to use window.opener / window.parent / window.top
...s called
window.parent refers to the parent of a window in a <frame> or <iframe>
window.top refers to the top-most window from a window nested in one or more layers of <iframe> sub-windows
Those will be null (or maybe undefined) when they're not relevant to the referring window's...