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Difference between DateTime and Time in Ruby

... concerned. Picking one for consistency is probably best, so try and mesh with what your libraries expect. For example, ActiveRecord prefers DateTime. In versions prior to Ruby 1.9 and on many systems Time is represented as a 32-bit signed value describing the number of seconds since January 1, 197...
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In pure functional languages, is there an algorithm to get the inverse function?

In pure functional languages like Haskell, is there an algorithm to get the inverse of a function, (edit) when it is bijective? And is there a specific way to program your function so it is? ...
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Java equivalent to #region in C#

...he code types involved (constructors, imports etc.), but there's nothing quite like #region. share | improve this answer | follow | ...
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How does free know how much to free?

...you can pass any kind of pointer you like as an argument to free, how does it know the size of the allocated memory to free? Whenever I pass a pointer to some function, I have to also pass the size (ie an array of 10 elements needs to receive 10 as a parameter to know the size of the array), but I d...
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Elegant way to check for missing packages and install them?

I seem to be sharing a lot of code with coauthors these days. Many of them are novice/intermediate R users and don't realize that they have to install packages they don't already have. ...
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Should I store generated code in source control

... Saving it in source control is more trouble than it's worth. You have to do a commit every time you do a build for it to be any value. Generally we leave generated code( idl, jaxb stuff, etc) outside source control where I work ...
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How to make a HTTP request using Ruby on Rails?

I would like to take information from another website. Therefore (maybe) I should make a request to that website (in my case a HTTP GET request) and receive the response. ...
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git pushes with wrong user from terminal

I have an issue with git and my terminal. 20 Answers 20 ...
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Twitter Bootstrap vs jQuery UI? [closed]

...d input styling and modal dialog boxes. Now I've come across Bootstrap and it looks pretty good. 4 Answers ...
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Is an anchor tag without the href attribute safe?

Is it okay to use an anchor tag without including the href attribute, and instead using a JavaScript click event handler? So I would omit the href completely, not even have it empty ( href="" ). ...