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How do I use extern to share variables between source files?

...ler is informed that a variable exists (and this is its type); it does not allocate the storage for the variable at that point. A variable is defined when the compiler allocates the storage for the variable. You may declare a variable multiple times (though once is sufficient); you may only defin...
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How to handle both a single item and an array for the same property using JSON.net

....Categories)); Console.WriteLine(); } } } And finally, here is the output of the above: email: john.doe@sendgrid.com timestamp: 1337966815 event: open categories: newuser, transactional email: jane.doe@sendgrid.com timestamp: 1337966815 event: open categories: olduser F...
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Passing Data between View Controllers

...h it onto nav stack. ViewControllerB *viewControllerB = [[ViewControllerB alloc] initWithNib:@"ViewControllerB" bundle:nil]; viewControllerB.isSomethingEnabled = YES; [self pushViewController:viewControllerB animated:YES]; This will set isSomethingEnabled in ViewControllerB to BOOL value YES. P...
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How to set -source 1.7 in Android Studio and Gradle

... This is essentially the same as the accepted answer. – Kerem Aug 12 '15 at 12:20 1 ...
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How to debug a Flask app

...gh the code with breakpoints. The run configuration can point to a script calling app.run(debug=True, use_reloader=False), or point it at the venv/bin/flask script and use it as you would from the command line. You can leave the reloader disabled, but a reload will kill the debugging context and you...
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How to get all Errors from ASP.Net MVC modelState?

I want to get all the error messages out of the modelState without knowing the key values. Looping through to grab all the error messages that the ModelState contains. ...
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How to determine a Python variable's type?

... gregjorgregjor 16.7k11 gold badge1818 silver badges1414 bronze badges add a comme...
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Implicit “Submit” after hitting Done on the keyboard at the last EditText

...o my password, if I hit "Done" on the keyboard, the login form is automatically submitted, without me having to click the submit button. How is this done? ...
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$_POST vs. $_SERVER['REQUEST_METHOD'] == 'POST'

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Facebook Callback appends '#_=_' to Return URL

... answered Sep 4 '11 at 7:14 RyanRyan 13.7k2727 gold badges8585 silver badges153153 bronze badges ...