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Rails params explained?

.... For example, if a user's browser requested http://www.example.com/?foo=1&boo=octopus then params[:foo] would be "1" and params[:boo] would be "octopus". In HTTP/HTML, the params are really just a series of key-value pairs where the key and the value are strings, but Ruby on Rails has a spe...
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Proper package naming for testing with the Go language

... 134 The fundamental difference between the three strategies you've listed is whether or not the te...
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Calculating Distance between two Latitude and Longitude GeoCoordinates

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Is there a “previous sibling” selector?

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How to get the first item from an associative PHP array?

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Rails filtering array of objects by attribute value

... 174 Try : This is fine : @logos = @attachments.select { |attachment| attachment.file_type == 'lo...
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What's the difference between JavaScript and JScript?

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Zooming MKMapView to fit annotation pins?

... MKMapView and have added a number of annotation pins to the map about a 5-10 kilometre area. When I run the application my map starts zoomed out to show the whole world, what is the best way to zoom the map so the pins fit the view? ...
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Determining if a number is either a multiple of ten or within a particular set of ranges

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Delete all local git branches

... 419 The 'git branch -d' subcommand can delete more than one branch. So, simplifying @sblom's answe...