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Is there documentation for the Rails column types?

I'm looking for more than the simple type listing that is found on this page : 2 Answers ...
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Force add despite the .gitignore file

Is there a way to force git to add a file despite the .gitignore file? 3 Answers 3...
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How to find the length of a string in R

How to find the length of a string (number of characters in a string) without splitting it in R? I know how to find the length of a list but not of a string. ...
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Excluding directories in os.walk

I'm writing a script that descends into a directory tree (using os.walk()) and then visits each file matching a certain file extension. However, since some of the directory trees that my tool will be used on also contain sub directories that in turn contain a LOT of useless (for the purpose of thi...
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Using a BOOL property

Apple recommends to declare a BOOL property this way: 3 Answers 3 ...
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Rails: how do I validate that something is a boolean?

Does rails have a validator like validates_numericality_of for boolean or do I need to roll my own? 5 Answers ...
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How do Third-Party “tracking cookies” work?

I have read this question here: How Do Internet Advertisers Use Third-Party Cookies? on how third-party tracking cookies work, but am still very confused. I don't understand how if I visit Website A (a normal website with ads) how Website B (an advertising website) can assign my computer an ID, a...
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YAML Multi-Line Arrays

In YAML , you can easily create multi-line strings . However, I would like the ability to create a multi-line array (mainly for readibility within config files) using the | character. ...
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jQuery removing '-' character from string

I have a string "-123445". Is it possible to remove the '-' character from the string? 3 Answers ...
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What's the difference between := and = in Makefile?

For variable assignment in Make, I see := and = operator. What's the difference between them? 3 Answers ...