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Codesign error: Certificate identity appearing twice

CodeSign error: Certificate identity 'iPhone Developer: XXXX (12345678)' appears more than once in the keychain. The codesign tool requires there only be one. ...
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Using MemoryStore in production

Today I ran my Node.js application in "production" mode for the first time and got this warning: 8 Answers ...
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How to increment datetime by custom months in python without using library [duplicate]

I need to increment the month of a datetime value 21 Answers 21 ...
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Recursion or Iteration?

Is there a performance hit if we use a loop instead of recursion or vice versa in algorithms where both can serve the same purpose? Eg: Check if the given string is a palindrome. I have seen many programmers using recursion as a means to show off when a simple iteration algorithm can fit the bill. D...
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Espresso: Thread.sleep( );

Espresso claims that there is no need for Thread.sleep(); , but my code doesn't work unless I include it. I am connecting to an IP. While connecting, a progress dialog is shown. I need a sleep to wait for the dialog to dismiss. This is my test snippet where I use it: ...
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Copy file or directories recursively in Python

Python seems to have functions for copying files (e.g. shutil.copy ) and functions for copying directories (e.g. shutil.copytree ) but I haven't found any function that handles both. Sure, it's trivial to check whether you want to copy a file or a directory, but it seems like a strange omission. ...
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How do I set up a simple delegate to communicate between two view controllers?

I have two UITableViewControllers and need to pass the value from the child view controller to the parent using a delegate. I know what delegates are and just wanted to see a simple to follow example. ...
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Is the LIKE operator case-sensitive with MSSQL Server?

In the documentation about the LIKE operator , nothing is told about the case-sensitivity of it. Is it? How to enable/disable it? ...
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Visual Studio debugging “quick watch” tool and lambda expressions

Why can't I use lambda expressions while debugging in “Quick watch” window? 9 Answers ...
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How do I rename the android package name? [duplicate]

Pressing Shift+F6 seems only to rename the last directory. For example , in the project com.example.test it will offer to rename test only. The same applies if I navigate to package name in .java or Manifest file and press Shift+F6. ...