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(Mac) -bash: __git_ps1: command not found

...r - in git's development history this is after a commit that split out the __git_ps1 function from the completion functionality into a new file (git-prompt.sh). The commit that introduced this change, which explains the rationale, is af31a456. I would still suggest that you just source the version...
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Assign a variable inside a Block to a variable outside a Block

... You need to use this line of code to resolve your problem: __block Person *aPerson = nil; For more details, please refer to this tutorial: Blocks and Variables share | improve this...
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Can I redirect the stdout in python into some sort of string buffer?

...ngIO import StringIO # Python3 use: from io import StringIO import sys old_stdout = sys.stdout sys.stdout = mystdout = StringIO() # blah blah lots of code ... sys.stdout = old_stdout # examine mystdout.getvalue() share ...
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Unique Key constraints for multiple columns in Entity Framework

... third approach may not necessarily be the best. (I like the first one actually.) I personally prefer not having any EF artifacts carried over into my entity classes. – Najeeb Nov 11 '17 at 12:45 ...
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java.net.URLEncoder.encode(String) is deprecated, what should I use instead?

... He's calling it bloated because its overpopulating the global class namespace. Why have URLEncoder.encode and URLDecoder.decode when you could have URL.encode and URL.decode, or even just URLEncoder.decode? Why make it all redundan...
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Embedding DLLs in a compiled executable

...to embed resources in your assembly. It's available as NuGet package. Install-Package Costura.Fody After adding it to the project, it will automatically embed all references that are copied to the output directory into your main assembly. You might want to clean the embedded files by adding a tar...
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Function in JavaScript that can be called only once

... If by "won't be executed" you mean "will do nothing when called more than once", you can create a closure: var something = (function() { var executed = false; return function() { if (!executed) { executed = true; // do something } ...
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How to apply a function to two columns of Pandas dataframe

Suppose I have a df which has columns of 'ID', 'col_1', 'col_2' . And I define a function : 12 Answers ...
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moving changed files to another branch for check-in

... you have not made the commit yet, just run git stash. This will save away all of your changes. Switch to the branch you want the changes on and run git stash pop. There are lots of uses for git stash. This is certainly one of the more useful reasons. An example: # work on some code git stash gi...
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How to paste yanked text into the Vim command line

...you know how to use them you cannot live without them. Registers are basically storage locations for strings. Vim has many registers that work in different ways: 0 (yank register: when you use y in normal mode, without specifying a register, yanked text goes there and also to the default register...