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When to use ko.utils.unwrapObservable?

...ervable in cases where you don't know if you have been given an observable or not. This would commonly be in a custom binding where an observable or non-observable could be bound against it. In the code that you have above, the call to valueAccessor() is not actually unwrapping an observable. It ...
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Concurrent vs serial queues in GCD

...oncurrent: the code runs on a background thread but the main thread waits for it to finish, blocking any updates to the UI. The block can't assume that it's the only block running on that queue (I could have added another block using async a few seconds previously) sync - serial: the code runs on a ...
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AngularJS ui-router login authentication

...e module, but here's what I've come up with. This is a complex process to work around some caveats, so hang in there. You'll need to break this down into several pieces. Take a look at this plunk. First, you need a service to store the user's identity. I call this principal. It can be checked to s...
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In MySQL what does “Overhead” mean, what is bad about it, and how to fix it?

simple question, but its been nagging me for a while now.... 4 Answers 4 ...
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How to make a Python script run like a service or daemon in Linux

... How can I get this script to execute 24/7, such as turning it into daemon or service in Linux. Would I also need a loop that never ends in the program, or can it be done by just having the code re executed multiple times? ...
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Check if a number is int or float

...int! _EDIT:_ As pointed out, in case of long integers, the above won't work. So you need to do: >>> x = 12L >>> import numbers >>> isinstance(x, numbers.Integral) True >>> isinstance(x, int) False ...
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Uppercase or lowercase doctype?

When writing the HTML5 doctype what is the correct method? 7 Answers 7 ...
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Force SSL/https using .htaccess and mod_rewrite

How can I force to SSL/https using .htaccess and mod_rewrite page specific in PHP. 9 Answers ...
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Get size of folder or file

How can I retrieve size of folder or file in Java? 18 Answers 18 ...
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One SVN repository or many?

...iple, unrelated projects, is it a good idea to put them in the same repository? 13 Answers ...