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@class vs. #import

It is to my understanding that one should use a forward-class declaration in the event ClassA needs to include a ClassB header, and ClassB needs to include a ClassA header to avoid any circular inclusions. I also understand that an #import is a simple ifndef so that an include only happens once....
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Do regular expressions from the re module support word boundaries (\b)?

... ahh after yours and Bolo's suggestion, it was because I wasn't using a raw string. Thanks! – D.C. Oct 22 '10 at 8:46 9 ...
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How to check if element is visible after scrolling?

...you to call a utility function that accepts the element you're looking for and if you want the element to be fully in view or partially. function Utils() { } Utils.prototype = { constructor: Utils, isElementInView: function (element, fullyInView) { var pageTop = $(window).scrollTo...
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What does @synchronized() do as a singleton method in objective C?

I just created a singleton method, and I would like to know what the function @synchronized() does, as I use it frequently, but do not know the meaning. ...
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error: Libtool library used but 'LIBTOOL' is undefined

... For folks who ended up here and are using CYGWIN, install following packages in cygwin and re-run: cygwin32-libtool libtool libtool-debuginfo share | ...
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iOS app icon with transparent background showing black background on device

I have added an icon to my app. It has rounded edges and no background. The problem is that when I run an app on my device (iPhone 5) the icon has a black background behind the edges as if it wasn't transparent. Any solutions? ...
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Trying to load jquery into tampermonkey script

... edited Jul 9 '19 at 12:33 Pikamander2 4,13822 gold badges3030 silver badges4747 bronze badges answered Aug 7 '14 at 1:14 ...
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How to redirect stderr to null in cmd.exe

I have an application that logs a lot of noise to stderr and REALLY slows down the execution of the application. I would like to redirect that output to null. Is this possible with cmd.exe? ...
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How do I automatically sort a has_many relationship in Rails?

...ill change wildly depending on how you're fetching data in the first place and which Ruby you're using to run your app. share | improve this answer | follow | ...
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Best way to select random rows PostgreSQL

I want a random selection of rows in PostgreSQL, I tried this: 12 Answers 12 ...