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What is “lifting” in Scala?

... i > 0 => i % 2 == 0} pf: PartialFunction[Int,Boolean] = <function1> scala> pf.lift res1: Int => Option[Boolean] = <function1> scala> res1(-1) res2: Option[Boolean] = None scala> res1(1) res3: Option[Boolean] = Some(false) Methods You can "lift" a method invocatio...
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How do I type using my keyboard on the iphone simulator?

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How to center a checkbox in a table cell?

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How to calculate number of days between two dates

...ut dates taking from Date Picker control. I have selected start date 2/2/2012 and end date 2/7/2012. I have written following code for that. ...
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How to list only top level directories in Python?

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Pythonic way to add datetime.date and datetime.time objects

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Multiple commands on a single line in a Windows batch file

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How can I run dos2unix on an entire directory? [closed]

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How to check if an intent can be handled from some activity?

... 150 edwardxu's solution works perfectly for me. Just to clarify a bit: PackageManager packageMan...