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Regex how to match an optional character
I have a regex that I thought was working correctly until now. I need to match on an optional character. It may be there or it may not.
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Find the extension of a filename in Ruby
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How to sort the result from string_agg()
I have a table:
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What is the difference between t.belongs_to and t.references in rails?
... is the difference between t.references and t.belongs_to ?
Why are we having those two different words? It seems to me they do the same thing?
Tried some Google search, but find no explanation.
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Specify pane percentage in tmuxinator project
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Rails: where does the infamous “current_user” come from?
I've been looking around recently into Rails and notice that there are a lot of references to current_user . Does this only come from Devise? and do I have to manually define it myself even if I use Devise? Are there prerequisites to using current_user (like the existence of sessions, users, etc)...
Uninstall ReSharper 4.5
I have ReSharper 4.5 in Visual Studio 2008. Now I want to install ReSharper 5, but I can't do it before I uninstall ReSharper 4.5.
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Scala downwards or decreasing for loop?
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Setting focus on an HTML input box on page load
...lt focus on an input box when the page loads (example: google).
My page is very simple, yet I can't figure out how to do this.
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rsync: difference between --size-only and --ignore-times
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