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Determine if ActiveRecord Object is New
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ndnenkov
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answered Oct 20 '11 at 22:20
John BeynonJohn Beynon
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Is returning by rvalue reference more efficient?
...O to omit doing a move or copy altogether. I recommend you to read BoostCon09 Rvalue References 101 which explains the matter, and how (N)RVO happens to interact with this.
Your case of returning an rvalue reference would be a good idea in other occasions. Imagine you have a getAB() function whic...
SQLite table constraint - unique on multiple columns
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answered Apr 23 '10 at 20:50
Ayman HouriehAyman Hourieh
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image.onload event and browser cache
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answered Sep 10 '12 at 15:41
Fabrício MattéFabrício Matté
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How to get HTTP Response Code using Selenium WebDriver
...with Selenium2/WebDriver and want to test if HTTP Request returns an HTTP 403 Forbidden.
9 Answers
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Get value from hidden field using jQuery
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answered Jun 22 '10 at 8:18
SarfrazSarfraz
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Xcode Product -> Archive disabled
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1360
You've changed your scheme destination to a simulator instead of Generic iOS Device.
That's why...
Start thread with member function
...he syntax described above is defined in terms of the INVOKE definition (§20.8.2.1):
Define INVOKE (f, t1, t2, ..., tN) as follows:
(t1.*f)(t2, ..., tN) when f is a pointer to a member function of a class T and t1 is an object of type T or a reference to an object of
type T or a refer...
Rails find record with zero has_many records associated [duplicate]
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Bah, found it here: https://stackoverflow.com/a/5570221/417872
City.includes(:photos).where(photos: { city_id: nil })
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How do I adjust the anchor point of a CALayer, when Auto Layout is being used?
... apply this transform to a view:
v.transform = CGAffineTransformMakeScale(0.5,0.5);
I expect to see the view appear with its center in the same place as before and at half the size. But depending on its constraints, that may not be what I see at all.
[Actually, there's a second surprise here: ap...