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Android equivalent to NSNotificationCenter
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Kotlin: Here's a @Shiki's version in Kotlin with a little bit refactor in a fragment.
Register the observer in Fragment.
Fragment.kt
class MyFragment : Fragment() {
private var mContext: Context? = null
private val mMessageReceiver = object: BroadcastReceiver() {
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TypeScript and field initializers
... if (fields) Object.assign(this, fields);
}
}
or do it manually (bit more safe):
if (fields) {
this.name = fields.name || this.name;
this.address = fields.address || this.address;
this.age = fields.age || this.age;
}
usage:
let persons = [
new Pe...
How can I concatenate two arrays in Java?
... in calling out that it exists, especially since there's so many excellent bits of functionality in Apache Commons.
– Rob
Oct 12 '08 at 15:58
34
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Visual Studio TFS shows unchanged files in the list of pending changes
... Another possibility of this happening is if you toggle the "read only" bit of a file without actually changing it's content. TFS can be annoying at times.
– arviman
Jan 31 '14 at 15:59
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How do you copy the contents of an array to a std::vector in C++ without looping?
...y this is doing exactly what you seem to want to avoid. It is not copying bits, it is just looping and calling push_back(). I guess you only wanted to avoid typing the code?
– mmocny
Nov 3 '08 at 17:11
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Wrapping null-returning method in Java with Option in Scala?
...)
scala> Option(null)
res13: Option[Null] = None
This behaviour is a bit inconsistent but it kind of reflects the intented usage of both Try and Option.
You use try to get whatever comes out of an expression that may throw exceptions, and you don't care about the exception itself.
The value...
What's the difference between nohup and ampersand
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There are many cases when small differences between environments can bite you. This is one into which I have ran recently. What is the difference between these two commands?
1 ~ $ nohup myprocess.out &
2 ~ $ myprocess.out &
The answer is the same as usual - it depends.
nohup catche...
reference assignment is atomic so why is Interlocked.Exchange(ref Object, Object) needed?
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answered Feb 3 '10 at 16:20
Eric LippertEric Lippert
599k164164 gold badges11551155 silver badges20142014 bronze badges
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Passing Objects By Reference or Value in C#
...ugh of course C# has pointers and custom value types, which makes it all a bit more complicated than in Java.
– Jon Skeet
Jun 3 '15 at 7:17
3
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How do I enumerate the properties of a JavaScript object? [duplicate]
...t get private variables this way because they are not available.
EDIT: @bitwiseplatypus is correct that unless you use the hasOwnProperty() method, you will get properties that are inherited - however, I don't know why anyone familiar with object-oriented programming would expect anything less! T...