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What does $_ mean in PowerShell?
...he current value in the pipe line, which is called $PSItem in Powershell 3 and newer.
1,2,3 | %{ write-host $_ }
or
1,2,3 | %{ write-host $PSItem }
For example in the above code the %{} block is called for every value in the array. The $_ or $PSItem variable will contain the current value...
How to get a reversed list view on a list in Java?
...ith an original list that is modifiable, changes to both the original list and the view are reflected in the other.
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Best explanation for languages without null
...find (_.firstName == "joe")) map (fullNameLength)
How does this work?
//convert an Option[List[Person]] to an Option[S]
//where the function f takes a List[Person] and returns an S
people map f
//find a person named "Joe" in a List[Person].
//returns Some[Person], or None if "Joe" isn't in the l...
Display a view from another controller in ASP.NET MVC
...across multiple controllers. Just add your View to the Shared subdirectory and you're good to go.
If you do return View("~/Views/Wherever/SomeDir/MyView.aspx") You can return any View you'd like.
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为AppInventor2开发拓展(Extension) · App Inventor 2 中文网
...代码（可编译运行）如下：
package cn.fun123.Clipboard;
import android.content.Context;
import android.util.Log;
import android.widget.Toast;
import android.content.ClipData;
import android.content.ClipboardManager;
import android.content.Intent;
import android.content.res.AssetFileDescr...
Is there “0b” or something similar to represent a binary number in Javascript
... is a prefix for hexadecimal numbers in Javascript. For example, 0xFF stands for the number 255.
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Vibrate and Sound defaults on notification
I'm trying to get a default vibrate and sound alert when my notification comes in, but so far no luck. I imagine it's something to do with the way I set the defaults, but I'm unsure of how to fix it. Any thoughts?
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Get JSON object from URL
...; Fatal error: Cannot use object of type stdClass as array in F:\wamp\www\sandbox\linkedin\test.php on line 22
– user2199343
Mar 25 '13 at 14:39
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How can i take an UIImage and give it a black border?
...eView, the image is viewed perfectly but the sides of image is left blank, and the same happens to the upper and lower portion of the image when image is landscape. The blank space looks ugly with border set to it.. Did you faced this issue? If yes, please suggest a method to solve this
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Word wrap for a label in Windows Forms
...ically (only width). To get this right you will need to subclass the label and include vertical resize logic.
Basically what you need to do in OnPaint is:
Measure the height of the text (Graphics.MeasureString).
If the label height is not equal to the height of the text set the height and return....