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Rails new vs create

...Rails' implementation of REST new and create are treated differently. An HTTP GET to /resources/new is intended to render a form suitable for creating a new resource, which it does by calling the new action within the controller, which creates a new unsaved record and renders the form. An HTTP PO...
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Easy way to convert Iterable to Collection

In my application I use 3rd party library (Spring Data for MongoDB to be exact). 19 Answers ...
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What is the difference between UTF-8 and Unicode?

... most UNIXes default to UTF-8 these days. Communications protocols such as HTTP tend to work best with UTF-8, as the unit size in UTF-8 is the same as in ASCII, and most such protocols were designed in the ASCII era. On the other hand, UTF-16 gives the best average space/processing performance when ...
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How to calculate time in hours between two dates in iOS

...distanceBetweenDates / secondsInAnHour; See, the apple reference library http://developer.apple.com/library/mac/navigation/ or if you are using Xcode just select help/documentation from the menu. See: how-to-convert-an-nstimeinterval-seconds-into-minutes --edit: See ÐąrέÐέvil's answer below...
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ThreadStart with parameters

How do you start a thread with parameters in C#? 16 Answers 16 ...
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javascript: pause setTimeout();

If I have an active timeout running that was set through var t = setTimeout("dosomething()", 5000) , 17 Answers ...
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How to compare arrays in C#? [duplicate]

How can I compare two arrays in C#? 6 Answers 6 ...
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Why do C++ libraries and frameworks never use smart pointers?

I read in a few articles that raw pointers should almost never be used. Instead they should always be wrapped inside smart pointers, whether it's scoped or shared pointers. ...
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Java: Literal percent sign in printf statement

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Why does X[Y] join of data.tables not allow a full outer join, or a left join?

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