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Editing dictionary values in a foreach loop

... Setting a value in a dictionary updates its internal "version number" - which invalidates the iterator, and any iterator associated with the keys or values collection. I do see your point, but at the same time it would be od...
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jQuery - If element has class do this

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Cache Invalidation — Is there a General Solution?

...ng the computed value (of type b) into some kind of a writer Monad Writer (Set (uuid)) b where Set (uuid) (Haskell notation) contains all the identifiers of the mutable values on which the computed value b depends. So, uuid is some kind of a unique identifier that identifies the mutable value/variab...
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How do I create a new Swift project without using Storyboards?

...s to be initialized during the instantiation: Classes and structures must set all of their stored properties to an appropriate initial value by the time an instance of that class or structure is created. Stored properties cannot be left in an indeterminate state. Properties of optional type are aut...
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How to change a PG column to NULLABLE TRUE?

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How to get the mouse position without events (without moving the mouse)?

...return x; } function getMouseY() { return y; } You can also set x and y to null on mouseleave-event. So you can check if the user is on your page with it's cursor. share | improve thi...
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How to focus on a form input text field on page load using jQuery?

... Set focus on the first text field: $("input:text:visible:first").focus(); This also does the first text field, but you can change the [0] to another index: $('input[@type="text"]')[0].focus(); Or, you can use the ID: ...
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powershell 2.0 try catch how to access the exception

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iOS start Background Thread

...ect: to spawn a new thread, then the performed selector is responsible for setting up the new thread's autorelease pool, run loop and other configuration details – see "Using NSObject to Spawn a Thread" in Apple's Threading Programming Guide. You'd probably be better off using Grand Central Dispa...
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How costly is .NET reflection?

...benchmark performance specifically on reflection when it is used to get or set an objects properties. I devised a test which I think is fair since it caches all the repeating calls and only times the actual SetValue or GetValue call. All the source code for the performance test is in bitbucket at: ...