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C# 'is' operator performance

...t casting is redundant. If you are going to cast anyway, here is a better approach: ISpecialType t = obj as ISpecialType; if (t != null) { // use t here } share | improve this answer ...
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How can I get query string values in JavaScript?

...&myparam=2. There is not a specification, however, most of the current approaches follow the generation of an array. myparam = ["1", "2"] So, this is the approach to manage it: let urlParams = {}; (window.onpopstate = function () { let match, pl = /\+/g, // Regex for replacing ...
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MySQL indexes - what are the best practices?

...agine you've got that CSV file loaded up in a very rudimentary spreadsheet application. All this spreadsheet does is display the data, and numbers the rows in sequential order. Now imagine that you need to find all the rows that have some value "M" in the third column. Given what you have availab...
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Always pass weak reference of self into block in ARC?

...in Objective-C. I currently use ARC and I have quite a lot of blocks in my app, currently always referring to self instead of its weak reference. May that be the cause of these blocks retaining self and keeping it from being dealloced ? The question is, should I always use a weak reference of ...
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Passing current scope to an AngularJS Service

... To let the controller know when something async happens, use Angular promises. To provoke the $apply, you don't need the scope, you can call $rootScope.$apply, as there is no difference calling it in a specific scope or in the root. Regarding the variable reading, it woul...
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How does OAuth 2 protect against things like replay attacks using the Security Token?

...f course I'd never do that -- that donut was disgusting. I wonder if this approach has broader applications. He mentioned this was his second approach, I could call it Olaf 2.0. Anyway I better get home, I gotta start looking for a new job. But not before I get one of those strawberry shakes from t...
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How many threads is too many?

...ly set it to 100, then release your software to the wild and monitor what happens. If your thread usage peaks at 3, then 100 is too much. If it remains at 100 for most of the day, bump it up to 200 and see what happens. You could actually have your code itself monitor usage and adjust the configur...
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Setting global styles for Views in Android

Let's say I want all the TextView instances in my app to have textColor="#ffffff" . Is there a way to set that in one place instead of setting it for each TextView ? ...
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Difference between / and /* in servlet mapping url pattern

...tainer's builtin JSP servlet will be invoked, which is already by default mapped on the more specific URL pattern *.jsp. <url-pattern></url-pattern> Then there's also the empty string URL pattern . This will be invoked when the context root is requested. This is different from the <w...
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What exactly do “IB” and “UB” mean?

... times, particularly in the context of C++. I've tried googling them, but apparently those two-letter combinations see a lot of use. :P ...