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How do I unload (reload) a Python module?
...ode is recompiled and
the module-level code reexecuted,
defining a new set of objects which
are bound to names in the module’s
dictionary. The init function of
extension modules is not called a
second time. As with all other objects
in Python the old objects are only
reclaimed afte...
How do I increase the scrollback buffer in a running screen session?
... If you find you reach the default max buffer can't show more history, and setting by scrollback <num>, it doesn't help you extand buffer anymore, you need redo last command to get the whole history buffer.
– Kamil
Dec 13 '19 at 1:35
...
Aspect Oriented Programming vs. Object-Oriented Programming
...es for this meta-programming. Assume you have a graphical class with many "set...()" methods. After each set method, the data of the graphics changed, thus the graphics changed and thus the graphics need to be updated on screen. Assume to repaint the graphics you must call "Display.update()". The cl...
How to correctly use “section” tag in HTML5?
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What is the Scala identifier “implicitly”?
...he value:
def foo[A: M] = {
val ma = implicitly[M[A]]
}
Passing a subset of implicit parameters explicitly
Suppose you are calling a method that pretty prints a person, using a type class based approach:
trait Show[T] { def show(t: T): String }
object Show {
implicit def IntShow: Show[Int]...
Understanding Canvas and Surface concepts
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What's the difference between passing by reference vs. passing by value?
... misunderstand what "call by reference" really means. Here's my attempt to set matters straight.
TL;DR
In simplest terms:
call by value means that you pass values as function arguments
call by reference means that you pass variables as function arguments
In metaphoric terms:
Call by value is...
Exclude all transitive dependencies of a single dependency
...s your <exclusions>. For projects that need to use that dependency, set the dependency to your custom pom instead of the typical artifact. While that does not necessarily allow you exclude all transitive dependencies with a single <exclusion>, it does allow you only have to write your ...
How do I implement an Objective-C singleton that is compatible with ARC?
...l its sub-classes. It is always called before any methods of the class.
I set a breakpoint in one once in iOS 6 and dispatch_once appeared in the stack frames.
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Value Change Listener to JTextField
...i.widget;
import javax.swing.JTextField;
import javax.swing.text.AttributeSet;
import javax.swing.text.BadLocationException;
import javax.swing.text.PlainDocument;
/** A JTextField with a property that maps its text.
* <br>I've found no way to track efficiently the modifications of the text...