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Array vs. Object efficiency in JavaScript
I have a model with possibly thousands of objects. I was wondering what would be the most efficient way of storing them and retrieving a single object once I have it's id. The id's are long numbers.
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MySQL INNER JOIN select only one row from second table
... user, those of which have payments, may have multiple associated payments in the payments table. I would like to select all users who have payments, but only select their latest payment. I'm trying this SQL but i've never tried nested SQL statements before so I want to know what i'm doing wrong. ...
Postgres unique constraint vs index
As I can understand documentation the following definitions are equivalent:
8 Answers
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Python/postgres/psycopg2: getting ID of row just inserted
I'm using Python and psycopg2 to interface to postgres.
3 Answers
3
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How to create standard Borderless buttons (like in the design guideline mentioned)?
I was just checking the design guidelines and wondering about the borderless buttons.
I goggled and tried to find in the source but can't bring it together by myself.
Is this the normal Button widget but you add a custom (Android default) style?
How to make these borderless buttons (of course you ca...
Delete duplicate records in SQL Server?
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You can do this with window functions. It will order the dupes by empId, and delete all but the first one.
delete x from (
select *, rn=row_number() over (partition by EmployeeName order by empId)
from Employee
) x
where rn > 1;
Run it ...
What's Mongoose error Cast to ObjectId failed for value XXX at path “_id”?
When sending a request to /customers/41224d776a326fb40f000001 and a document with _id 41224d776a326fb40f000001 does not exist, doc is null and I'm returning a 404 :
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How to delete an SMS from the inbox in Android programmatically?
...ones SMS messages registered to applications also get sent to the device's inbox. However to prevent clutter, it'd be nice to be able to remove application specific SMS messages from the inbox to reduce the potential overflow of those messages.
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Is there a way to iterate over a slice in reverse in Go?
It would be convenient to be able to say something like:
6 Answers
6
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YouTube iframe API: how do I control an iframe player that's already in the HTML?
...able to control iframe based YouTube players. This players will be already in the HTML, but I want to control them via the JavaScript API.
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