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How can I expose more than 1 port with Docker?
...be exposed to the machine's interface. Is it possible to do this with a Docker container?
4 Answers
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How do I declare an array of weak references in Swift?
I'd like to store an array of weak references in Swift. The array itself should not be a weak reference - its elements should be. I think Cocoa NSPointerArray offers a non-typesafe version of this.
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What exactly is Python multiprocessing Module's .join() Method Doing?
... name join is used because the multiprocessing module's API is meant to look as similar to the threading module's API, and the threading module uses join for its Thread object. Using the term join to mean "wait for a thread to complete" is common across many programming languages, so Python just ado...
String is immutable. What exactly is the meaning? [duplicate]
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Before proceeding further with the fuss of immutability, let's just take a look into the String class and its functionality a little before coming to any conclusion.
This is how String works:
String str = "knowledge";
This, as usual, creates a string containing "knowledge" and assigns it a ...
Swift native base class or NSObject
I tested out some isa swizzling with Swift, and found that it only works when NSObject is a super-class (directly or further up), or by using the '@objc' decoration. Otherwise it will follow a static- and vtable-dispatch style, like C++.
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C++ Singleton design pattern
...lization/implementation of the Singleton design pattern for C++. It has looked like this (I have adopted it from the real life example):
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“’” showing on page instead of “ ' ”
... answered Mar 19 '10 at 13:06
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How can I use NSError in my iPhone App?
I am working on catching errors in my app, and I am looking into using NSError . I am slightly confused about how to use it, and how to populate it.
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Is there a better alternative than this to 'switch on type'?
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Switching on types is definitely lacking in C# (UPDATE: in C#7 / VS 2017 switching on types is supported - see Zachary Yates's answer below). In order to do this without a large if/else if/else statement, you'll need to work with a different structure. I wrote ...
Are static fields open for garbage collection?
... responsible for loading this class) is itself collected for garbage.
Check out the JLS Section 12.7 Unloading of Classes and Interfaces
A class or interface may be unloaded
if and only if its defining class
loader may be reclaimed by the garbage
collector [...] Classes and interfaces
l...