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JavaScript: Passing parameters to a callback function

... variable like so: function tryMe (param1, param2) { alert(param1 + " and " + param2); } function callbackTester (callback) { callback (arguments[1], arguments[2]); } callbackTester (tryMe, "hello", "goodbye"); But otherwise, your example works fine (arguments[0] can be used in place of...
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Error Domain=NSURLErrorDomain Code=-1005 “The network connection was lost.”

I have an application which works fine on Xcode6-Beta1 and Xcode6-Beta2 with both iOS7 and iOS8. But with Xcode6-Beta3, Beta4, Beta5 I'm facing network issues with iOS8 but everything works fine on iOS7. I get the error "The network connection was lost." . The error is as follows: ...
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What exactly do “u” and “r” string flags do, and what are raw string literals?

...no "escape sequences" to represent newlines, tabs, backspaces, form-feeds, and so on. In normal string literals, each backslash must be doubled up to avoid being taken as the start of an escape sequence. This syntax variant exists mostly because the syntax of regular expression patterns is heavy w...
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Why can't a text column have a default value in MySQL?

If you try to create a TEXT column on a table, and give it a default value in MySQL, you get an error (on Windows at least). I cannot see any reason why a text column should not have a default value. No explanation is given by the MySQL documentation. It seems illogical to me (and somewhat frustrati...
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Can anyone explain what JSONP is, in layman terms? [duplicate]

... Preface: This answer is over six years old. While the concepts and application of JSONP haven't changed (i.e. the details of the answer are still valid), you should look to use CORS where possible (i.e. your server or API supports it, and the browser support is adequate), as JSONP has in...
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Why we should not use protected static in java

...able exists at class level, it does not exist separately for each instance and it does not have an independent existence in classes which extend me. Think about what protected means: This variable can be seen by this class, classes in the same package and classes which extend me. The two mea...
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UIDevice uniqueIdentifier deprecated - What to do now?

...ght that the UIDevice uniqueIdentifier property is deprecated in iOS 5 and unavailable in iOS 7 and above. No alternative method or property appears to be available or forthcoming. ...
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Jackson enum Serializing and DeSerializer

I'm using JAVA 1.6 and Jackson 1.9.9 I've got an enum 14 Answers 14 ...
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What is the “volatile” keyword used for?

... correct usage. Could you please tell me what it should be used for in C# and in Java? 8 Answers ...
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Why does the arrow (->) operator in C exist?

... I'll interpret your question as two questions: 1) why -> even exists, and 2) why . does not automatically dereference the pointer. Answers to both questions have historical roots. Why does -> even exist? In one of the very first versions of C language (which I will refer as CRM for "C Refe...