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Vim for Windows - What do I type to save and exit from a file?

...lly typed git commit -a instead of git commit -am "My commit message" , and now I'm viewing my CMD prompt filled with the file version of my commit message ("Please enter the commit message for your..."). I've added my message to the top, but now I can't figure out how to save and leave. I tried ...
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What is the difference between synchronous and asynchronous programming (in node.js)

I've been reading nodebeginner And I came across the following two pieces of code. 10 Answers ...
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What's the difference between OpenID and OAuth?

I'm really trying to understand the difference between OpenID and OAuth? Maybe they're two totally separate things? 21 Answ...
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Why does this C++ snippet compile (non-void function does not return a value) [duplicate]

... This is undefined behavior from the C++11 draft standard section 6.6.3 The return statement paragraph 2 which says: [...] Flowing off the end of a function is equivalent to a return with no value; this results in undefined behavior in a value-returning function. [...] ...
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Java: when to use static methods

...ering when to use static methods? Say if I have a class with a few getters and setters, a method or two, and I want those methods only to be invokable on an instance object of the class. Does this mean I should use a static method? ...
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android fragment- How to save states of views in a fragment when another fragment is pushed on top o

In android, a fragment (say FragA ) gets added to the backstack and another fragment (say FragB ) comes to the top. Now on hitting back FragA comes to the top and the onCreateView() is called. Now I had FragA in a particular state before FragB got pushed on top of it. ...
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What's the difference between dependencies, devDependencies and peerDependencies in npm package.json

This documentation answers my question very poorly. I didn't understand those explanations. Can someone say in simpler words? Maybe with examples if it's hard to choose simple words? ...
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reference assignment is atomic so why is Interlocked.Exchange(ref Object, Object) needed?

...d _allData of my own type SystemData which consists of few List<T> and Dictionary<T> marked as volatile . The system data ( _allData ) is refreshed once in a while and I do it by creating another object called newData and fill it's data structures with new data. When it's done I j...
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Is it possible for a computer to “learn” a regular expression by user-provided examples?

...ton, it is possible to learn some regular expressions by a program. Kearns and Valiant show some cases where it is not possible to learn a finite automaton. A related problem is learning hidden Markov Models, which are probabilistic automata that can describe a character sequence. Note that most mod...
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jQuery: what is the best way to restrict “number”-only input for textboxes? (allow decimal points)

... Update There is a new and very simple solution for this: It allows you to use any kind of input filter on a text <input>, including various numeric filters. This will correctly handle Copy+Paste, Drag+Drop, keyboard shortcuts, contex...