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Most efficient way to cast List to List

...lass>)(List<?>)subList; Nothing is copied, and the operation is fast. However, you are tricking the compiler here so you must make absolutely sure to not modify the list in such a way that the subList starts containing items of a different sub type. When dealing with immutable lists thi...
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INotifyPropertyChanged vs. DependencyProperty in ViewModel

...n out there of devs making salacious claims that INotifyPropertyChanged is faster or incurs less overhead than DPs and it's simply unfounded. DPs are fast, elegant and powerful ways to structurally define the virtual (data) tree. – tpartee Jul 6 '17 at 1:44 ...
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Using union and order by clause in mysql

...ext it can sort by or organize. But this way has the advantage of being fast, not introducing extra variables, and making it easy to separate out each query including the sort. The ability to add a limit is simply an extra bonus. And of course feel free to turn the union all into a union and ad...
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Why are global variables evil? [closed]

...Further on that, if you consider unit-testing and the F.I.R.S.T principle (Fast tests, Independent tests, Repeatable, Self-Validating and Timely) will probably violate the Independent tests principle (which means that tests don't depend on each other). Having a global variable (not always) but in ...
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How to initialize all members of an array to the same value in Swift?

...s no efficient mechanism to do this in Swift when the hardware can do this fast. Maybe its worth investigating the source. – wcochran May 14 at 16:53 add a comment ...
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What is the most elegant way to remove a path from the $PATH variable in Bash?

... I used this because it looked like the simplest solution. It was super fast and easy, and you can easily check your work with echo $WORK right before the last line where you actually change the PATH variable. – Phil Gran Aug 21 '12 at 19:15 ...
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T-SQL: Using a CASE in an UPDATE statement to update certain columns depending on a condition

...ponses were ~1 minute apart, so I'd imagine I just clicked submit a little faster ;) – Adam Robinson Jan 28 '11 at 16:15 24 ...
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android asynctask sending callbacks to ui [duplicate]

...o add some things. If you're a new to Android development, AsyncTask is a fast way to make things work without blocking UI thread. It does solves some problems indeed, there is nothing wrong with how the class works itself. However, it brings some implications, such as: Possibility of memory leak...
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How can I trigger a JavaScript event click

... Thanks for the fast response. I was able to get the change event running after few modifications to your snippet: 1) var node = document.getElementById(originalEvent.srcElement.id); 2) event.initEvent(eventName, true, true); //I don`t know...
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Fastest way to download a GitHub project

...ple into my box. It has public read-only access. Is there is an extremely fast way of downloading this code? 8 Answers ...