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How do you set, clear, and toggle a single bit?
How do you set, clear, and toggle a bit?
30 Answers
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Traversing text in Insert mode
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You seem to misuse vim, but that's likely due to not being very familiar with it.
The right way is to press Esc, go where you want to do a small correction, fix it, go back and keep editing. It is effective because Vim has much more movements than usual character forward/backward/up/down. After ...
In Python how should I test if a variable is None, True or False
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edited Oct 14 '15 at 20:13
answered Jan 7 '10 at 13:46
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How can I check if an element exists in the visible DOM?
How do you test an element for existence without the use of the getElementById method?
25 Answers
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What are the benefits to marking a field as `readonly` in C#?
What are the benefits of having a member variable declared as read only? Is it just protecting against someone changing its value during the lifecycle of the class or does using this keyword result in any speed or efficiency improvements?
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What's the best way to refactor a method that has too many (6+) parameters?
Occasionally I come across methods with an uncomfortable number of parameters. More often than not, they seem to be constructors. It seems like there ought to be a better way, but I can't see what it is.
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What is an “unwrapped value” in Swift?
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cantBeNil = nil // can't do this
To get the value from your variable if it is optional, you have to unwrap it. This just means putting an exclamation point at the end.
var canBeNil : Int? = 4
println(canBeNil!)
Your code should look like this:
let optionalSquare: Square? = Square(sideLength: ...
How to use LocalBroadcastManager?
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I'll answer this anyway. Just in case someone needs it.
ReceiverActivity.java
An activity that watches for notifications for the event named "custom-event-name".
@Override
public void onCreate(Bundle savedInstanceState) {
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// Register to receive messages.
// We ...
Accessing constructor of an anonymous class
...I have a concrete class Class1 and I am creating an anonymous class out of it.
10 Answers
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Is it possible to run JavaFX applications on iOS, Android or Windows Phone 8?
Can one develop an entire application using JavaFX and run it on iOS, Android or Windows Phone 8, without writing platform-specific code?
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