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Rails new vs create

Why is there a need to define a new method in RESTful controller, follow it up with a create method? 4 Answers ...
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Why does scanf() need “%lf” for doubles, when printf() is okay with just “%f”?

Why is it that scanf() needs the l in " %lf " when reading a double , when printf() can use " %f " regardless of whether its argument is a double or a float ? ...
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How to use range-based for() loop with std::map?

The common example for C++11 range-based for() loops is always something simple like this: 5 Answers ...
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Difference between this and self in self-type annotations?

In various Scala literature I see some self-type annotations using "this" and others using "self": 2 Answers ...
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onIabPurchaseFinished never called.

I've been trying to set up in-app billing for my first app, and have been using the android.test.purchased sku. The purchase come through, and I manage to get the SKU into my inventory, but, as the title says, onIabPurchaseFinished, is never called. ...
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Can we convert a byte array into an InputStream in Java?

Can we convert a byte array into an InputStream in Java? I have been looking on the internet but couldn't find it. 2 Answer...
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invalid target release: 1.7

I have seen similar questions, but haven't yet found the answer. 5 Answers 5 ...
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$(this) inside of AJAX success not working

I am trying to change some old code which uses onclick so that I an use the $(this). The problem is that $(this) is not working when inside the success. Is there anyway to do this without setting it as a var. ...
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How to add a new row to datagridview programmatically

if add row to DataTable 17 Answers 17 ...
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Is There a Better Way of Checking Nil or Length == 0 of a String in Ruby?

Is there a better way than the following to check to see if a string is nil OR has a length of 0 in Ruby? 16 Answers ...