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What is a “context bound” in Scala?
... the new features of Scala 2.8 are context bounds. What is a context bound and where is it useful?
4 Answers
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How to prevent a background process from being stopped after closing SSH client in Linux
...ought I could do that by starting the process in background (with an ampersand at the end of the command) and redirecting stdout to a file.
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Getting current device language in iOS?
...n of the device - not the currently selected language. These are often one and the same. However, if I am in North America and I set my language to Japanese, my region will still be English (United States). In order to retrieve the currently selected language, you can do:
NSString * language = [[NS...
JavaScript: filter() for Objects
...filter() prototype for Array types, but not Object types, if I understand correctly.
15 Answers
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Calculating Distance between two Latitude and Longitude GeoCoordinates
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The GeoCoordinate class (.NET Framework 4 and higher) already has GetDistanceTo method.
var sCoord = new GeoCoordinate(sLatitude, sLongitude);
var eCoord = new GeoCoordinate(eLatitude, eLongitude);
return sCoord.GetDistanceTo(eCoord);
The distance is in meters.
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Can't install Ruby under Lion with RVM – GCC issues
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This answer was edited multiple times and now contains several alternative solutions. Try the simple “Edit 3” solution first.
Ruby 1.9.3-p125 and later have official support for clang, so if you are installing such a version you should not need GCC. If you...
What is a web service endpoint?
... say my web service is located at http://localhost:8080/foo/mywebservice and my WSDL is at http://localhost:8080/foo/mywebservice?wsdl .
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UIButton: Making the hit area larger than the default hit area
I have a question dealing with UIButton and its hit area. I am using the Info Dark button in interface builder, but I am finding that the hit area is not large enough for some people's fingers.
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How do I pass multiple parameters into a function in PowerShell?
...g parameter, the first parameter seems to get all the data assigned to it, and remaining parameters are passed in as empty.
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Can I set an opacity only to the background image of a div?
...nnot be done since opacity affects the whole element including its content and there's no way to alter this behavior. You can work around this with the two following methods.
Secondary div
Add another div element to the container to hold the background. This is the most cross-browser friendly meth...