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Best practices for Storyboard login screen, handling clearing of data upon logout

I'm building an iOS app using a Storyboard. The root view controller is a Tab Bar Controller. I'm creating the login/logout process, and it's mostly working fine, but I've got a few issues. I need to know the BEST way to set all this up. ...
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How do I call ::std::make_shared on a class with only protected or private constructors?

I have this code that doesn't work, but I think the intent is clear: 16 Answers 16 ...
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Bootstrap modal: background jumps to top on toggle

I have a problem, with a modal. I have a button on a page, that toggles the modal. When the modal shows up, the page jumps to top. ...
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How to avoid using Select in Excel VBA

I've heard much about the understandable abhorrence of using .Select in Excel VBA, but am unsure of how to avoid using it. I am finding that my code would be more re-usable if I were able to use variables instead of Select functions. However, I am not sure how to refer to things (like the Activ...
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Java Byte Array to String to Byte Array

I'm trying to understand a byte[] to string, string representation of byte[] to byte[] conversion... I convert my byte[] to a string to send, I then expect my web service (written in python) to echo the data straight back to the client. ...
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Why can't variable names start with numbers?

I was working with a new C++ developer a while back when he asked the question: "Why can't variable names start with numbers?" ...
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How to grey out a button?

I have a button defined as shown below. When I want to disable it I use my_btn.setEnabled(false) , but I would also like to grey it out. How can I do that? ...
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How can I convert my device token (NSData) into an NSString?

I am implementing push notifications. I'd like to save my APNS Token as a String. 29 Answers ...
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How to install a private NPM module without my own registry?

I've taken some shared code and put it in an NPM module, one I don't want to upload to the central registry. The question is, how do I install it from other projects? ...
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How can you automatically remove trailing whitespace in vim

I am getting 'trailing whitespace' errors trying to commit some files in git. 13 Answers ...