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Switch statement fall-through…should it be allowed? [closed]
... case 4:
case 6:
case 8:
result = EVEN_DIGIT;
break;
}
But if you have a case label followed by code that falls through to another case label, I'd pretty much always consider that evil. Perhaps moving the common code to a function and calling from both places would be a better idea....
How do I map lists of nested objects with Dapper
...our courses populating with the locations.
Caveat the in trick will work if you have less than 2100 lookups (Sql Server), if you have more you probably want to amend the query to select * from CourseLocations where CourseId in (select Id from Courses ... ) if that is the case you may as well yank ...
Deep copying an NSArray
...
As the Apple documentation about deep copies explicitly states:
If you only need a one-level-deep copy:
NSMutableArray *newArray = [[NSMutableArray alloc]
initWithArray:oldArray copyItems:YES];
The above code creates a new array whose members are shallow co...
Allow user to set up an SSH tunnel, but nothing else
...and block scp copying, while allowing port forwarding to go through.
Specifically I have a redis-server on "somehost" bound to localhost:6379 that I wish to share securely via ssh tunnels to other hosts that have a keyfile and will ssh in with:
$ ssh -i keyfile.rsa -T -N -L 16379:localhost:6379 s...
Check if list contains any of another list
...practice - for all non-trivial list lengths the Intersect will be faster - if the lists are trivially short, it does not matter one way or another (in that case performance probably is not your concern at all anyway)
– BrokenGlass
Oct 20 '16 at 15:46
...
Programmatically obtain the phone number of the Android phone
..."???????", and it can return a stale phone number that is no longer valid. If you want something that uniquely identifies the device, you should use getDeviceId() instead.
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Best way to parseDouble with comma as decimal separator?
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This only works if the current default locale happens to use a comma as a decimal separator.
– Joonas Pulakka
Dec 1 '10 at 11:05
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How to get the selected index of a RadioGroup in Android
...Id(radioButtonID);
int idx = radioButtonGroup.indexOfChild(radioButton);
If the RadioGroup contains other Views (like a TextView) then the indexOfChild() method will return wrong index.
To get the selected RadioButton text on the RadioGroup:
RadioButton r = (RadioButton) radioButtonGroup.getChi...
How do ACID and database transactions work?
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ACID is a set of properties that you would like to apply when modifying a database.
Atomicity
Consistency
Isolation
Durability
A transaction is a set of related changes which is used to achieve some of the ACID properties. Transactions are tools to achieve the ACID properties.
Atomici...
WPF Timer Like C# Timer
...hat automatically. (That's the advantage of making the timer a Control.) If you don't you'll have a memory leak and possibly other bugs.
– Trade-Ideas Philip
Nov 28 '16 at 14:11
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