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What is the difference between parseInt() and Number()?

... Well, they are semantically different, the Number constructor called as a function performs type conversion and parseInt performs parsing, e.g.: // parsing: parseInt("20px"); // 20 parseInt("10100", 2); // 20 parseInt("2e1"); // 2 /...
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Are 2^n and n*2^n in the same time complexity?

...out when it is okay to ignore terms in a time complexity equation, specifically with non-polynomial examples. 5 Answers ...
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Why does this method print 4?

... When we first get into main, the space left over is X-M. Each recursive call takes up R more memory. So for 1 recursive call (1 more than original), the memory use is M + R. Suppose that StackOverflowError is thrown after C successful recursive calls, that is, M + C * R <= X and M + C * (R + 1)...
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Error - Unable to access the IIS metabase

After installing Visual Studio 2012 and opening my solution I get a series of errors in this form: 37 Answers ...
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Find the nth occurrence of substring in a string

...ad been thinking of doing the equivalent of .rfind('XXX'), but that would fall apart if 'XXX' appears later in the input anyway. – Nikhil Chelliah Jul 7 '10 at 4:17 ...
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Fragment onCreateView and onActivityCreated called twice

...ment in the constructor seems to make the double onCreateView problem magically go away (I assume it just ends up being null for onTabSelected when called through the ActionBar.setSelectedNavigationItem() path when saving/restoring state). ...
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Regex to check whether a string contains only numbers [duplicate]

... This one will allow also for signed and float numbers or empty string: var reg = /^-?\d*\.?\d*$/ If you don't want allow to empty string use this one: var reg = /^-?\d+\.?\d*$/ ...
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How do I programmatically determine operating system in Java?

...e operating system of the host that my Java program is running programmatically (for example: I would like to be able to load different properties based on whether I am on a Windows or Unix platform). What is the safest way to do this with 100% reliability? ...
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How to order events bound with jQuery

...his.bind(eventType + eventNameSpace, eventData, handler); var allEvents = $this.data("events") || $._data($this[0], "events"); var typeEvents = allEvents[eventType]; var newEvent = typeEvents.pop(); typeEvents.unshift(newEvent); }); }; })(...
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CSS table-cell equal width

...eems like the answer. I don't know why but if I set the width to 2% it actually scrunges up each column into 2%. But 100% seems to work great. Any idea what's going on there? – Harry May 10 '12 at 2:07 ...