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Meaning of @classmethod and @staticmethod for beginner? [duplicate]
...instances and classes:
A dotted lookup on an instance is performed in this order - we look for:
a data descriptor in the class namespace (like a property)
data in the instance __dict__
a non-data descriptor in the class namespace (methods).
Note, a dotted lookup on an instance is invoked like this...
Matplotlib (pyplot) savefig outputs blank image
...
change the order of the functions fixed the problem for me:
first Save the plot
then Show the plot
as following:
plt.savefig('heatmap.png')
plt.show()
sh...
How to use performSelector:withObject:afterDelay: with primitive types in Cocoa?
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PerformSelector:WithObject always takes an object, so in order to pass arguments like int/double/float etc..... You can use something like this.
//NSNumber is an object..
[self performSelector:@selector(setUserAlphaNumber:) withObject: [NSNumber numberWithFloat: 1.0f]
aft...
How do JavaScript closures work?
...nment of function foo is a closure.
A function doesn't have to return in order to create a closure. Simply by virtue of its declaration, every function closes over its enclosing lexical environment, forming a closure.
function foo(x) {
var tmp = 3;
return function (y) {
console.l...
Why does ReSharper tell me “implicitly captured closure”?
...Roslyn) or Mono's compiler. The implementation must work
as described in order to correctly handle multiple closures capturing
a value type. For example, if multiple closures capture an int, then
they must capture the same instance, which can only happen with a
single shared private nested c...
Deserialize JSON with C#
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An explanation would be in order.
– Peter Mortensen
Nov 25 '19 at 11:20
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Namespace not recognized (even though it is there)
... one without? Confirm the paths in both projects.
I also noticed that the order of the using commands is different. It shouldn't matter, but have you tried to shuffle them?
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How do you default a new class to public when creating it in Visual Studio?
... You may need to have your text editor open in Admin mode, in order to update the actual class template.
– david.barkhuizen
Dec 17 '14 at 13:56
3
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SPAN vs DIV (inline-block)
...nces between Inline-Elements (e.g. span) and Block-Elements (e.g. div), in order to understand why "display: inline-block" is so useful.
Problem: inline elements (e.g. span, a, button, input etc.) take "margin" only horizontally (margin-left and margin-right) on, not vertically. Vertical spacing wor...
How to change XAMPP apache server port?
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