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What's the difference between the 'ref' and 'out' keywords?
I'm creating a function where I need to pass an object so that it can be modified by the function. What is the difference between:
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Best way to add “current” class to nav in Rails 3
I have some static pages in a navigation menu. I want to add a class like "current" to the item which is currently displaying.
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EF Migrations: Rollback last applied migration?
This looks like a really common task, but I can't find an easy way to do it.
14 Answers
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How to use WeakReference in Java and Android development?
...eferences.
You should think about using one whenever you need a reference to an object, but you don't want that reference to protect the object from the garbage collector. A classic example is a cache that you want to be garbage collected when memory usage gets too high (often implemented with Wea...
How to import the class within the same directory or sub directory?
I have a directory that stores all the .py files.
13 Answers
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Interfaces with static fields in java for sharing 'constants'
I'm looking at some open source Java projects to get into Java and notice a lot of them have some sort of 'constants' interface.
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Are static variables shared between threads?
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There isn't anything special about static variables when it comes to visibility. If they are accessible any thread can get at them, so you're more likely to see concurrency problems because they're more exposed.
There is a visibility issue imposed by the JVM's memory model. Here's an articl...
warning this call is not awaited, execution of the current method continues
Just got VS2012 and trying to get a handle on async .
10 Answers
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How do you automatically set text box to Uppercase?
I am using the following style attribute to set the user input to uppercase so that when the user starts typing in the text box for example railway , then it should be altered to capital letters like RAILWAY without the user having to press the Caps-lock button.
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How can I use threading in Python?
I am trying to understand threading in Python. I've looked at the documentation and examples, but quite frankly, many examples are overly sophisticated and I'm having trouble understanding them.
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