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Performance surprise with “as” and nullable types
I'm just revising chapter 4 of C# in Depth which deals with nullable types, and I'm adding a section about using the "as" operator, which allows you to write:
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Correct way to detach from a container without stopping it
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it returns me: Error response from daemon: Container f560a0ad6806150b2775d0b6e6d5f7065a03775bae858fb4fb7df05a277976db is not running
– Webwoman
Mar 1 '19 at 13:27
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View not attached to window manager crash
... report app crashes. I was getting a View not attached to window manager error message and thought I had fixed it by wrapping the pDialog.dismiss(); in an if statement:
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Loading local JSON file
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I tried this, but no luck. No error in console as well :(
– Govind Kailas
Feb 15 '14 at 11:21
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bower command not found
...6 Jul 17 2012 git
Here is a node-which attempt:
> which.sync('git')
Error: not found: git
I change the permissions (chomd 755 git).
Now node-which can find it.
> which.sync('git')
'/usr/local/bin/git'
Hope this helps.
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How do I space out the child elements of a StackPanel?
...yle.Resources> Are u sure about it coz when i tried this it was showing error.
– grv_9098
Nov 29 '12 at 9:50
Sorry,...
Usage of protocols as array types and function parameters in swift
...}
let xy = XY(x: 1, y: 2)
let xz = XZ(x: 3, z: 4)
//let xs = [xy, xz] // error
let xs = [AnyX(xy), AnyX(xz)]
xs.forEach { print($0.x) } // 1 3
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How to close a Java Swing application from the code
... threads, your application will not terminate. This should be considered a error (and solving it with System.exit is a very bad idea).
The most common culprits are java.util.Timer and a custom Thread you've created. Both should be set to daemon or must be explicitly killed.
If you want to check fo...
How to elegantly ignore some return values of a MATLAB function?
...e , isn't optional. Just typing [~ ~ var] will not work, and will throw an error.
See the release notes for details.
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Downcasting in Java
Upcasting is allowed in Java, however downcasting gives a compile error.
11 Answers
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