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How do I get the n-th level parent of an element in jQuery?
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Read further down the answer and all shall be revealed! (I've given you level examples)
– Henry
Aug 17 '11 at 13:37
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Filtering for empty or NULL names in a queryset
... using NULL values for string-based fields such as CharField or TextField. Read the documentation for the explanation:
https://docs.djangoproject.com/en/dev/ref/models/fields/#null
Solution:
You can also chain together methods on QuerySets, I think. Try this:
Name.objects.exclude(alias__isnull=Tr...
How do I have to configure the proxy settings so Eclipse can download new plugins?
...ieve.connectTimeout=15000
-Dorg.eclipse.ecf.provider.filetransfer.retrieve.readTimeout=1000
-Dorg.eclipse.ecf.provider.filetransfer.retrieve.retryAttempts=20
-Dorg.eclipse.ecf.provider.filetransfer.retrieve.closeTimeout=1000
-Dorg.eclipse.ecf.provider.filetransfer.browse.connectTimeout=3000
-Dorg.ec...
Replace multiple characters in a C# string
...ond / delimits the search-for text and the replace text
In English, this reads:
"Search for ; or , or \t or \r or (space) or exactly two sequential \n and replace it with \n"
In C#, you could do the following: (after importing System.Text.RegularExpressions)
Regex pattern = new Regex("[;,\t\r ...
How to update Ruby to 1.9.x on Mac?
...is not malicious - if you're a paranoid penguin like me, you can always go read the source: https://github.com/wayneeseguin/rvm ) When it's complete you need to restart the terminal to get the rvm command working.
rvm list known
( shows you the latest available versions of Ruby )
rvm install rub...
How can I measure the similarity between two images? [closed]
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Use a normalised colour histogram. (Read the section on applications here), they are commonly used in image retrieval/matching systems and are a standard way of matching images that is very reliable, relatively fast and very easy to implement.
Essentially a co...
How to remove the first commit in git?
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To be clear for anyone reading this answer: this deletes every commit, but OP only wants to delete the first commit made to a repo; don't run this to delete the first commit because it will delete ALL commits.
– Jody Bruchon
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Add st, nd, rd and th (ordinal) suffix to a number
... @Anomaly funnily enough, after ~π/2 years later I can still read it.
– Camilo Martin
Mar 10 '18 at 6:22
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show 6 more comment...
iphone Core Data Unresolved error while saving
...hment to Charles' snippet. The straight output from NSLog can be a mess to read and interpret, so I like to throw in some white space and call out the value of some critical 'userInfo' keys.
Here's a version of the method I've been using. ('_sharedManagedObjectContext' is a #define for '[[[UIApplic...
SQLiteDatabase.query method
...uick reference for future viewers.
Example
SQLiteDatabase db = helper.getReadableDatabase();
String table = "table2";
String[] columns = {"column1", "column3"};
String selection = "column3 =?";
String[] selectionArgs = {"apple"};
String groupBy = null;
String having = null;
String orderBy = "colu...