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Look up all descendants of a class in Ruby
...e:
class Parent
def self.descendants
ObjectSpace.each_object(Class).select { |klass| klass < self }
end
end
class Child < Parent
end
class GrandChild < Child
end
puts Parent.descendants
puts Child.descendants
puts Parent.descendants gives you:
GrandChild
Child
puts Child.de...
“An attempt was made to load a program with an incorrect format” even when the platforms are the sam
...this was the answer... Can anyone suggest a downside to having this option selected?
– notidaho
Jul 31 '12 at 14:10
3
...
How to run only one local test class on Gradle
...therTestTask --tests *WebTest*ui
From version 1.10 of gradle it supports selecting tests, using a test filter. For example,
apply plugin: 'java'
test {
filter {
//specific test method
includeTestsMatching "org.gradle.SomeTest.someSpecificFeature"
//specific test method, use wil...
Alternate table row color using CSS?
.../td>
</tr>
</tbody>
</table>
There is a CSS selector, really a pseudo-selector, called nth-child. In pure CSS you can do the following:
tr:nth-child(even) {
background-color: #000000;
}
Note: No support in IE 8.
Or, if you have jQuery:
$(document).ready(functi...
Serialize form data to JSON [duplicate]
...
@DaniëlCamps is right. A <select multiple> with more than one option selected will fail.
– Vanderlei Pires
Oct 4 '18 at 17:25
...
Cannot create an NSPersistentStoreCoordinator with a nil model
...fore they aren't considered the same.
The quickest way to fix this, is to select the xcdatamodel file in your project navigator and in to the menu bar
Editor->Add Model Version...
and add a new version of your model. Make all changes to the new version.
This works in Xcode 5
...
Generate C# class from XML
... file as classes.
Copy your XML file's content to clipboard
In editor, select place where you want your classes to be pasted
From the menu, select EDIT > Paste Special > Paste XML As Classes
share
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Cannot open backup device. Operating System error 5
...
Go to the SQL server folder in start menu and click configuration tools
Select SQL Server configuration manager
On SQL server services, on the desired instance change the (Log On as) to local system
share
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Partial Commits with Subversion
... to backup original file.
Right-click the changes you don't want, and use select use other text block.
Save the diff exactly once. The backup will be overwritten each time you save. This is why you only want to save once.
Commit the change.
Overwrite the original with the created .bak file (which w...
Subversion stuck due to “previous operation has not finished”?
...ading SQLite to my checkout directory and running
sqlite3.exe .svn/wc.db "select * from work_queue"
you can get a list of all pending operations. These operations are the ones the error is referring to as "not finished".
By running
sqlite3.exe .svn/wc.db "delete from work_queue"
all of the o...