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Final arguments in interface methods - what's the point?
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It doesn't seem like there's any point to it. According to the Java Language Specification 4.12.4:
Declaring a variable final can serve
as useful documentation that its value
will not change and can help avoid
programming errors.
However, a final modifier on a m...
setNeedsLayout vs. setNeedsUpdateConstraints and layoutIfNeeded vs updateConstraintsIfNeeded
...the next line of the code, because new constraints pretty much are asking for a new layout.
The rules of thumb are:
If you manipulated constraints directly, call setNeedsLayout.
If you changed some conditions (like offsets or smth) which would change constraints in your overridden updateConstrai...
How do I generate random integers within a specific range in Java?
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In Java 1.7 or later, the standard way to do this is as follows:
import java.util.concurrent.ThreadLocalRandom;
// nextInt is normally exclusive of the top value,
// so add 1 to make it inclusive
int randomNum = ThreadLocalRandom.curre...
Creating an empty file in C#
...ind you. You could use braces instead:
using (File.Create(filename)) {}
Or just call Dispose directly:
File.Create(filename).Dispose();
Either way, if you're going to use this in more than one place you should probably consider wrapping it in a helper method, e.g.
public static void CreateEmp...
How to make a promise from setTimeout
This is not a realworld problem, I'm just trying to understand how promises are created.
2 Answers
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No route matches [GET] /assets
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In production mode, Rails will not be responsible for serving static assets. Therefore, you are getting this error. Thin won't do it either, since it's just a wrapper around Rails.
This is controlled by this setting in config/environments/production.rb in your application:
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Mongo: find items that don't have a certain field
How to search for documents in a collection that are missing a certain field in MongoDB?
2 Answers
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REST API Token-based Authentication
...everything and solve approach each problem in isolation:
Authentication
For authentication, baseauth has the advantage that it is a mature solution on the protocol level. This means a lot of "might crop up later" problems are already solved for you. For example, with BaseAuth, user agents know the...
How to do error logging in CodeIgniter (PHP)
I want error logging in PHP CodeIgniter. How do I enable error logging?
5 Answers
5
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What is the best way to unit test Objective-C code?
What frameworks exist to unit test Objective-C code? I would like a framework that integrates nicely with Apple Xcode.
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