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Delete a key from a MongoDB document using Mongoose
..., callback);
And since version 2.4, if you have an instance of a model already you can do:
doc.field = undefined;
doc.save(callback);
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List all environment variables from the command line
...ll variables with names starting with prefix.
For example, if you want to read only derbydb from the environment variables, do the following:
set derby
...and you will get the following:
DERBY_HOME=c:\Users\amro-a\Desktop\db-derby-10.10.1.1-bin\db-derby-10.10.1.1-bin
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EntityType has no key defined error
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I have also found that the key property has to be read-write. I got OP's error when I had a getter and no setter on the ID property.
– JohnFx
Sep 8 '16 at 21:45
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Omitting all xsi and xsd namespaces when serializing an object in .NET?
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@Abacus did you read the code? It uses XmlWriter and XmlWriterSettings.
– Cheeso
Apr 20 '13 at 4:35
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How do I convert an NSString value to NSData?
...ated string which is what stringWithUTF8String: requires, you're bounds to read memory you don't want. What converts it back is: -initWithData:encoding:.
– Psycho
May 5 '14 at 17:38
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In Python, how do I convert all of the items in a list to floats?
I have a script which reads a text file, pulls decimal numbers out of it as strings and places them into a list.
12 Answers...
How to parse date string to Date? [duplicate]
...would also reconsider if you wouldn't rather like to use HH instead of kk. Read the javadoc for details about valid patterns.
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Failed to load JavaHL Library
... Weird, on a hunch I just checked preferences and SVNKit was already there. This only happened on rare occasion (I'm not working in an SVN-backed project at the moment) so can't say that it worked. I really hope it does. When this does happen it locks up Eclipse until the search (?) f...
How do I turn a python datetime into a string, with readable format date?
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Using format() instead of strftime() in most cases can make the code more readable, easier to write and consistent with the way formatted output is generated...
>>>"{} today's date is: {:%B %d, %Y}".format("Andre", datetime.now())
Compare the above with the following strftime() alternat...
tooltips for Button
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The issue that I am reading though highlights that the title attribute is not fully supported by many mobile browsers. I'm currently researching this as well for some ADA issues and it seems to be only somewhat supported.
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