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When to use enumerateObjectsUsingBlock vs. for
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Ultimately, use whichever pattern you want to use and comes more naturally in the context.
While for(... in ...) is quite convenient and syntactically brief, enumerateObjectsUsingBlock: has a number of features that may or may not prove interesting:
enumerateObjectsUsingBlock...
How do I run git log to see changes only for a specific branch?
...-parent: "Follow only the first parent commit upon seeing a merge commit" (https://git-scm.com/docs/git-log)
It prevents the commit forks from being displayed.
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Why would an Enum implement an Interface?
...ust have to represent passive sets (e.g. colours). They can represent more complex objects with functionality, and so you're then likely to want to add further functionality to these - e.g. you may have interfaces such as Printable, Reportable etc. and components that support these.
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How to write multiple line string using Bash with variables?
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How to make good reproducible pandas examples
...are less likely to contain reproducible data. This is something that the R community has been pretty good about encouraging, and thanks to guides like this , newcomers are able to get some help on putting together these examples. People who are able to read these guides and come back with reproduci...
MySQL CONCAT returns NULL if any field contain NULL
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Learning Ruby on Rails
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I've found http://railstutorial.org/book to be a great resource for learning Rails
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answered Jul 30 '10 at...
Append column to pandas dataframe
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Make virtualenv inherit specific packages from your global site-packages
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The tilde operator in Python
...pes are just different ways of interpreting bytes. It is the "invert" or "complement" operation, in which all the bits of the input data are reversed.
In Python, for integers, the bits of the twos-complement representation of the integer are reversed (as in b <- b XOR 1 for each individual bit)...