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Event binding on dynamically created elements?
...ower overhead when many elements must be monitored. On a data table with 1,000 rows in its tbody, the first code example attaches a handler to 1,000 elements.
A delegated-events approach (the second code example) attaches an event handler to only one element, the tbody, and the event only needs to ...
What are the alternatives now that the Google web search API has been deprecated? [closed]
...oS on my web page that every person that visits that page has to give me $10000. Can I enforce this ToS on my visitors? Will the have to may me immediately.
– InTheNameOfScience
Nov 25 '13 at 22:13
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What is the difference between precision and scale?
...: 9999999999
Precision 8, scale 3: 99999.999
Precision 5, scale -3: 99999000
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How to estimate how much memory a Pandas' DataFrame will need?
...l memory consumption:
>>> df.memory_usage(index=True).sum()
731731000
Also, passing deep=True will enable a more accurate memory usage report, that accounts for the full usage of the contained objects.
This is because memory usage does not include memory consumed by elements that are not c...
Determining 32 vs 64 bit in C++
...the correct code.
I used this technique (among many others) to write a 30,000 line project that worked flawlessly from the day it was first deployed into production (that was 12 months ago).
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mongodb: insert if not exists
...t; db.getCollection("test").insert({a:1, b:12, c:13}) # This fails
E11000 duplicate key error index: foo.test.$a_1 dup key: { : 1.0 }
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Is a view faster than a simple query?
... Server database. We're very successful and so, in a few years, we have 1,000,000+ records. However, we often need to report sales for tax purposes and we find that we've only sold 100 copies of our software in our home country. By creating an indexed view of just the Lithuanian records, we get to...
Try catch statements in C
...ined, so things get a little out of hand.
– flamewave000
Mar 11 at 20:06
Yes, it is limited to one try-catch in the sa...
Fastest Way of Inserting in Entity Framework
... }
}
return context;
}
I have a test program which inserts 560.000 entities (9 scalar properties, no navigation properties) into the DB. With this code it works in less than 3 minutes.
For the performance it is important to call SaveChanges() after "many" records ("many" around 100 or 1...
Cocoa Core Data efficient way to count entities
...quest(fetchRequest, error: nil)
I tested this in the simulator with a 400,000+ object count and the result was fairly fast (though not instantaneous).
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