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Difference between as.POSIXct/as.POSIXlt and strptime for converting character vectors to POSIXct/PO

...character vectors to datetime classes. I often see 2 methods, the strptime and the as.POSIXct/as.POSIXlt methods. I looked at the 2 functions but am unclear what the difference is. ...
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How to access accelerometer/gyroscope data from Javascript?

...o use DeviceOrientation API. This works in most modern browsers on desktop and mobile. window.addEventListener("deviceorientation", handleOrientation, true); After registering your event listener (in this case, a JavaScript function called handleOrientation()), your listener function per...
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Does Java support default parameter values?

... No, the structure you found is how Java handles it (that is, with overloading instead of default parameters). For constructors, See Effective Java: Programming Language Guide's Item 1 tip (Consider static factory methods instead of constructors) if the overloading ...
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Is it possible to program iPhone in C++

...to mash a few test apps together, but I find the syntax a little backwards and I am sure that I am doing things that lead to memory leaks etc just through lack of knowledge of Objective-C – Lea Hayes Jul 30 '11 at 14:26 ...
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Common elements in two lists

...tB); // common now contains only the elements which are contained in listA and listB. share | improve this answer | follow | ...
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Why are C# interface methods not declared abstract or virtual?

C# methods in interfaces are declared without using the virtual keyword, and overridden in the derived class without using the override keyword. ...
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When should I use UNSIGNED and SIGNED INT in MySQL?

When should I use UNSIGNED and SIGNED INT in MySQL ? What is better to use or this is just personal prefernce ? Because I've seen it used like this; ...
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How does “do something OR DIE()” work in PHP?

I'm writing a php app to access a MySQL database, and on a tutorial, it says something of the form 4 Answers ...
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How do I intercept a method call in C#?

...functionality i.e. I would like to log every method call (method signature and actual parameter values) and every method exit (just the method signature). ...
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jQuery - Get Width of Element when Not Visible (Display: None)

...: 0, outerWidth: 0, outerHeight: 0 }, $hiddenParents = $item.parents().andSelf().not(':visible'), includeMargin = (includeMargin == null) ? false : includeMargin; var oldProps = []; $hiddenParents.each(function () { var old = {}; for (var name in props) { ...