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Class does not implement its superclass's required members

... I updated to Xcode 6 beta 5 today and noticed I received errors in nearly all of my subclasses of Apple's classes. 4 Answe...
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How to write WinForms code that auto-scales to system font and dpi settings?

...h to WPF." However, I think that is based on .NET 1.1; it appears they actually did a pretty good job of implementing auto-scaling in .NET 2.0. At least based on our research and testing so far. However, if some of you out there know better, we'd love to hear from you. (Please don't bother arguing ...
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The best way to remove duplicate values from NSMutableArray in Objective-C?

...etWithArray:array]; You can then get back an array via array = [orderedSet allObjects]; or just use NSOrderedSets instead of NSArray in the first place. – Regexident May 14 '13 at 9:40 ...
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How to send email via Django?

...self an email! The above article mentioned by miku was perfect. Note the small typo correction in the comments of the article. (And I just used my regular computer/localhost. I had not set anything else up before hand.) – user984003 Oct 24 '12 at 16:11 ...
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How to change the text of a label?

...d child pages. How I write in child pages. I write $('#contentPlaceHolderId_LabelID') it not works. I also change th ClientMode to Static but no work. Please help. – Salman Mushtaq Feb 17 '16 at 12:52 ...
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Executing JavaScript without a browser?

...n on the topic, but if you want direct links, here they are: You can install Rhino as others have pointed out. This post shows an easy way to get it up and running and how to alias a command to invoke it easily If you're on a Mac, you can use JavaScriptCore, which invokes WebKit's JavaScript engin...
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Simple way to create matrix of random numbers

... You can drop the range(len()): weights_h = [[random.random() for e in inputs[0]] for e in range(hiden_neurons)] But really, you should probably use numpy. In [9]: numpy.random.random((3, 3)) Out[9]: array([[ 0.37052381, 0.03463207, 0.10669077], [ 0.05...
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submitting a GET form with query string params and hidden params disappear

...the question mark and the parameters, and then cross one's fingers to hope all browsers would leave that URL as it (and validate that the server understands it too). But I'd never rely on that. By the way: it's not different for non-hidden form fields. For POST the action URL could hold a query stri...
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What does cmd /C mean? [closed]

...iable expansion using ! as the delimiter. For example, /V:ON would allow !var! to expand the variable var at execution time. The var syntax expands variables at input time, which is quite a different thing when inside of a FOR loop. /V:OFF Disable delayed environmen...
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SQL WITH clause example [duplicate]

...roduced by Oracle in the Oracle 9i release 2 database. The SQL WITH clause allows you to give a sub-query block a name (a process also called sub-query refactoring), which can be referenced in several places within the main SQL query. The name assigned to the sub-query is treated as though it was an...