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How do you validate a URL with a regular expression in Python?

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How to specify a min but no max decimal using the range data annotation attribute?

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How to tell if browser/tab is active [duplicate]

...ion() { if (!interval_id) interval_id = setInterval(hard_work, 1000); }); $(window).blur(function() { clearInterval(interval_id); interval_id = 0; }); To Answer the Commented Issue of "Double Fire" and stay within jQuery ease of use: $(window).on("blur focus", function(e) {...
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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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Split code over multiple lines in an R script

... 110 You are not breaking code over multiple lines, but rather a single identifier. There is a diff...
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Delete first character of a string in Javascript

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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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Multiple commands on a single line in a Windows batch file

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