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How does Rails keep track of which migrations have run for a database?
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Especially useful when you are using a mix of a mountable engine and a dummy app
– Donato
May 7 '15 at 20:38
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A JRE or JDK must be available in order to run Eclipse. No JVM was found after searching the followi
...ays something like Java HotSpot(TM) 64-Bit Server VM (build 24.51-b03, mixed mode) then you likely have this problem.
– kert
Apr 10 '14 at 17:09
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WCF service startup error “This collection already contains an address with scheme http”
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Ok what if you have a site with a mix of .net 4 and .net 2 applications running under it. The Base of the application is .net4 and there are several applications under it that require .net2. Do you use <serviceHostingEnvironment multipleSiteBindingsEnabl...
Favourite performance tuning tricks [closed]
...ndy-dandy list of things I always give to someone asking me about optimisation.
We mainly use Sybase, but most of the advice will apply across the board.
SQL Server, for example, comes with a host of performance monitoring / tuning bits, but if you don't have anything like that (and maybe even if...
Using Case/Switch and GetType to determine the object [duplicate]
...m where approriate. If this "type" is used for serialization then you'd be mixing concerns.
– Dave Van den Eynde
Apr 2 '09 at 9:27
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Shell command to sum integers, one per line?
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You can also filter out non numbers if you have some text mixed in: import sys; print(sum(int(''.join(c for c in l if c.isdigit())) for l in sys.stdin))
– Granitosaurus
Feb 12 '18 at 12:02
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Simulate airplane mode in iPhone Simulator
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Turn off your network connection on the Mac.
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Change UICollectionViewCell size on different device orientations
I am using an UICollectionView with UICollectionViewFlowLayout .
6 Answers
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When do you use the Bridge Pattern? How is it different from Adapter pattern?
...ust the Adaptor Pattern with a little dependency injection thrown into the mix? Does it really deserve its own pattern?
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Objective-C - Remove last character from string
In Objective-C for iOS, how would I remove the last character of a string using a button action?
4 Answers
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