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How to get the last N records in mongodb?
... need to sort in ascending order.
Assuming you have some id or date field called "x" you would do ...
.sort()
db.foo.find().sort({x:1});
The 1 will sort ascending (oldest to newest) and -1 will sort descending (newest to oldest.)
If you use the auto created _id field it has a date embedded i...
Callback on CSS transition
Is it possible to get a notification (like callback) when a CSS transition has been completed?
5 Answers
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Programmatically change the src of an img tag
... elements that have IDs), you really should try to avoid jQuery, since the call is so much slower than the pure JS call
– Brian Leishman
Apr 8 '15 at 13:36
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How can I access getSupportFragmentManager() in a fragment?
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You can directly call
getFragmentManager()
to get the fragment manager.
or
In your fragment,
Create field :
private FragmentActivity myContext;
override onAttach method of your fragment :
@Override
public void onAttach(Activity...
How to Create a circular progressbar in Android which rotates on it?
... the documentation, you should get a reference to your progressbar and the call its setProgress method then pass the value. google.com/…
– M. Reza Nasirloo
Oct 3 '14 at 14:27
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How to get value of selected radio button?
...ess you can profile the above and/or inspect the implementation behind the call, you can say no more about the performance of the above than you can say about any other oneliner that calls native code. We do not have enough information to speculate how the browser manages to locate :checked element(...
How to get distinct values for non-key column fields in Laravel?
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Question specifically asks Note that I am not fetching that column only, it is in conjunction with other column values
– Hirnhamster
Oct 23 '15 at 11:20
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NSInvocation for Dummies?
...concept of messages is central to the objective-c philosophy. Any time you call a method, or access a variable of some object, you are sending it a message. NSInvocation comes in handy when you want to send a message to an object at a different point in time, or send the same message several times. ...
Difference between partition key, composite key and clustering key in Cassandra?
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In a situation of COMPOSITE primary key, the "first part" of the key is called PARTITION KEY (in this example key_part_one is the partition key) and the second part of the key is the CLUSTERING KEY (in this example key_part_two)
Please note that the both partition and clustering key can be made ...
MySQL Data - Best way to implement paging?
...t an ORDER BY there's no guarantee that the order will be the same between calls.
– Mark Byers
Sep 26 '10 at 18:59
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