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Which is more preferable to use: lambda functions or nested functions ('def')?
...lt;lambda>'
Lambdas are anonymous functions, after all, so they don't know their own name.
>>> l.__name__
'<lambda>'
>>> foo.__name__
'foo'
Thus lambda's can't be looked up programmatically in their namespace.
This limits certain things. For example, foo can be looked...
Does Swift support reflection?
...intln("Type: \(type)") //Unfortunately this prints only "Type: Metatype"
Now assuming TestObject extends NSObject
var clazz: NSObject.Type = TestObject.self
var instance : NSObject = clazz()
if let testObject = instance as? TestObject {
println("yes!") //prints "yes!"
}
Currently, there is...
How to get ELMAH to work with ASP.NET MVC [HandleError] attribute?
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Even I would like to know whether it's still relevant in today's version
– refactor
Jun 15 '15 at 10:16
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When should I use the Visitor Design Pattern? [closed]
...
(Suppose it is a complex hierarchy with a well-established interface.)
Now we want to add a new operation to the hierarchy, namely we want each animal to make its sound. As far as the hierarchy is this simple, you can do it with straight polymorphism:
class Animal
{ public: virtual void makeSou...
Remove last character from string. Swift language
...oIndex. Also, as of Xcode 7, string no longer has a .count property, it is now only applied to characters: string.characters.count
– kakubei
Jul 22 '15 at 15:18
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Java Reflection: How to get the name of a variable?
...s added to Java 8. Parameter (a special class of local variable) names are now available via reflection. Among other purposes, this can help to replace @ParameterName annotations used by dependency injection containers.
shar...
How can I get a user's media from Instagram without authenticating as a user?
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@MattFletcher it's even more stupid now, one must go through app permission review, and not sure if it's even feasible since this use case "showing client's own feed in their own webpage" is not one of the use cases. Duh, these restrictions suck.
...
Assign a variable inside a Block to a variable outside a Block
...Person *strongPerson = [Person new];
__weak Person *weakPerson = person;
Now you can refer weakPerson object inside block.
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How can I do a line break (line continuation) in Python?
...ly PEP-8 has changed since these comments were added, as it's fairly clear now that parentheses should be added to wrap long lines: "Long lines can be broken over multiple lines by wrapping expressions in parentheses."
– Daniel
Feb 8 '12 at 9:04
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Chrome Extension how to send data from content script to popup.html
I know this this has been asked in numerous posts but honestly I don't get them. I am new to JavaScript, Chrome Extensions and everything and I have this class assignment.
So I need to make a plugin that would count DOM objects on any given page using Cross Domain Requests.
I've been able to achiev...