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How can I get a view's current width and height when using autolayout constraints?
...our existing constraints, the answer is not to inspect the constraints manually, since that would require you to re-implement the entire constraint-solving logic of the auto layout system in order to interpret those constraints. Instead, what you should do is just ask auto layout to update that layo...
must appear in the GROUP BY clause or be used in an aggregate function
I have a table that looks like this caller 'makerar'
7 Answers
7
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Best practices for storing postal addresses in a database (RDBMS)?
...veal some nice pearls for interpreting and validating addresses internationally. It also has a nice set of administrative areas ( province, state, oblast, etc ) with ISO codes.
Here's the gist of the schema, copied from the module page:
country => Country (always required, 2 character ISO code...
Practical uses for AtomicInteger
I sort of understand that AtomicInteger and other Atomic variables allow concurrent accesses. In what cases is this class typically used though?
...
When to use a View instead of a Table?
When should a View actually be used over an actual Table? What gains should I expect this to produce?
8 Answers
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Are inline virtual functions really a non-sense?
... excerpt from the excellent C++ faq:
"The only time an inline virtual call
can be inlined is when the compiler
knows the "exact class" of the object
which is the target of the virtual
function call. This can happen only
when the compiler has an actual object
rather than a pointer or ...
Unable to Cast from Parent Class to Child Class
...
Well, I would hesitate to call this a "downcast".
– Kirk Woll
Dec 24 '12 at 4:43
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What is the HEAD in git?
...ce to the last commit in the currently checked-out branch.
There is a small exception to this, which is the detached HEAD. A detached HEAD is the situation you end up in whenever you check out a commit (or tag) instead of a branch. In this case, you have to imagine this as a temporary branch with...
AngularJS : Initialize service with asynchronous data
...ise;
}
}})
}):
Your controller won't get instantiated before all dependencies are resolved:
app.controller('MainCtrl', function($scope,MyService) {
console.log('Promise is now resolved: '+MyService.doStuff().data)
$scope.data = MyService.doStuff();
});
I've made an example at pl...
What is the optimal length for user password salt? [closed]
Any salt at all will obviously help when salting and hashing a user's password. Are there any best practices for how long the salt should be? I'll be storing the salt in my user table, so I would like the best tradeoff between storage size and security. Is a random 10 character salt enough? Or ...