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What does the leading semicolon in JavaScript libraries do?

...t rely on someone else's code following your conventions. Code defensively and then you don't have to. – jvenema Feb 16 '16 at 22:40 1 ...
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How do you switch pages in Xamarin.Forms?

...dPage, the one you don't like CarouselPage, that allows for switching left and right to next/prev pages. On top of this, all pages also supports PushModalAsync() which just push a new page on top of the existing one. At the very end, if you want to make sure the user can't get back to the previou...
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String is immutable. What exactly is the meaning? [duplicate]

...ith the fuss of immutability, let's just take a look into the String class and its functionality a little before coming to any conclusion. This is how String works: String str = "knowledge"; This, as usual, creates a string containing "knowledge" and assigns it a reference str. Simple enough? Le...
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Is there a bash command which counts files?

Is there a bash command which counts the number of files that match a pattern? 14 Answers ...
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#1071 - Specified key was too long; max key length is 767 bytes

When I executed the following command: 34 Answers 34 ...
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What does immutable mean?

...dited Feb 28 '15 at 2:23 Samar Panda 3,49633 gold badges2121 silver badges3131 bronze badges answered Jul 8 '10 at 1:57 ...
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Creating .pem file for APNS?

... Here is what I did, From:blog.boxedice.com and "iPhone Advanced Projects" chapter 10 byJoe Pezzillo. With the aps_developer_identity.cer in the keychain: Launch Keychain Access from your local Mac and from the login keychain, filter by the Certificates category. Yo...
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How to save an HTML5 Canvas as an image on a server?

...u // need is to return the url to the file, you just saved // and than put the image in your browser. }); Save base64 on your server as an image (here is how to do this in PHP, the same ideas is in every language. Server side in PHP can be found here): ...
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Is there a difference between “throw” and “throw ex”?

... ex resets the stack trace (so your errors would appear to originate from HandleException) throw doesn't - the original offender would be preserved. static void Main(string[] args) { try { Method2(); } catch (Exception ex) { Console.Write(ex.StackTrace.ToString()...
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json_encode is returning NULL?

...ranca on the web. Instead of cluttering the API with additional parameters and overhead, PHP (rigthly) uses the most common encoding, leaving to you the conversion burden if you use an uncommon (or an almost dead, as in your case) encoding. – ntd Nov 1 '13 at 1...