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How do you convert a byte array to a hexadecimal string, and vice versa?
How can you convert a byte array to a hexadecimal string, and vice versa?
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Does opacity:0 have exactly the same effect as visibility:hidden
If so, does it effectively deprecate the visibility property?
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Find which version of package is installed with pip
Using pip, is it possible to figure out which version of a package is currently installed?
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How are multi-dimensional arrays formatted in memory?
In C, I know I can dynamically allocate a two-dimensional array on the heap using the following code:
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Create a pointer to two-dimensional array
I need a pointer to a static 2-dimensional array. How is this done?
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Sending a message to nil in Objective-C
As a Java developer who is reading Apple's Objective-C 2.0 documentation: I wonder what " sending a message to nil " means - let alone how it is actually useful. Taking an excerpt from the documentation:
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Does pandas iterrows have performance issues?
I have noticed very poor performance when using iterrows from pandas.
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Is a Python list guaranteed to have its elements stay in the order they are inserted in?
If I have the following Python code
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How to get the first element of an array?
How do you get the first element from an array like this:
31 Answers
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How do I upgrade my ruby 1.9.2-p0 to the latest patch level using rvm?
...rent version of ruby is ruby 1.9.2p0 (2010-08-18 revision 29036) [x86_64-darwin10.5.0] but I want to update it to the latest patch level using rvm. How can I do this?
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