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Delete a key from a MongoDB document using Mongoose
....0 you can do:
User.update({_id: user._id}, {$unset: {field: 1 }}, 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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Android 'Unable to add window — token null is not for an application' exception
...- are you trying to create Dialog with an application context? Something like this:
new Dialog(getApplicationContext());
This is wrong. You need to use an Activity context.
You have to try like:
new Dialog(YourActivity.this);
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Should I put the Google Analytics JS in the or at the end of ?
... the end of the <head> section helps ensure the your metrics are tracked even when a user doesn't let the page finish loading.
They used to tell you to put it at the bottom of the page, before they added support for handling partial loading of pages.
Directly from Google:
One of the main...
Date vs DateTime
I am working on a program that requires the date of an event to get returned.
12 Answers
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How to directly initialize a HashMap (in a literal way)?
Is there some way of initializing a Java HashMap like this?:
14 Answers
14
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Default constructor with empty brackets
Is there any good reason that an empty set of round brackets (parentheses) isn't valid for calling the default constructor in C++?
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Provisioning Profiles menu item missing from Xcode 5
... I don't have a menu item for Library - Provisioning Profiles, and I don't know what could have happened. I restarted the computer, tried some things, but I really have no idea what I could do. How can I fix this problem?
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Redirect using AngularJS
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With an example of the not-working code, it will be easy to answer this question, but with this information the best that I can think is that you are calling the $location.path outside of the AngularJS digest.
Try doing this on the directive scope.$apply...
How do I convert an NSString value to NSData?
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ldiqual
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answered May 23 '09 at 11:34
flitzwaldflitzwald
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How to move screen without moving cursor in Vim?
...o the middle
of the screen
(Careful with zz, if you happen to have Caps Lock on accidentally, you will save and exit vim!)
zt - move current line
to the top of the screen
zb - move
current line to the bottom of the
screen
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