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Go to back directory browsing after opening file in vim

When I open a directory browsing in vim, I can open a file by moving the cursor to a file name and pressing Enter . 7 Ans...
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What are the precise rules for when you can omit parenthesis, dots, braces, = (functions), etc.?

...ou can't do this either: list tail length You could use infix notation by using parenthesis to mark end of expressions: (list tail) map (...) (list tail) length Note that postfix notation is discouraged because it may be unsafe. I hope this has cleared all the doubts. If not, just drop a c...
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What arguments are passed into AsyncTask?

...oogle's Android Documentation Says that : An asynchronous task is defined by 3 generic types, called Params, Progress and Result, and 4 steps, called onPreExecute, doInBackground, onProgressUpdate and onPostExecute. AsyncTask's generic types : The three types used by an asynchronous task are the...
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How do I raise the same Exception with a custom message in Python?

..."test.py", line 2, in <module> 1 / 0 ZeroDivisionError: division by zero The above exception was the direct cause of the following exception: Traceback (most recent call last): File "test.py", line 4, in <module> raise Exception('Smelly socks') from e Exception: Smelly socks ...
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Use of 'prototype' vs. 'this' in JavaScript?

...ia the instance's private [[Prototype]] property. A function's this is set by how the function is called or by the use of bind (not discussed here). Where a function is called on an object (e.g. myObj.method()) then this within the method references the object. Where this is not set by the call or b...
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Prevent segue in prepareForSegue method?

... FYI, if the segue is triggered programmatically by calling [self performSegueWithIdentifier:@"segueIdentifier" sender:nil]; shouldPerformSegueWithIdentifier will never get called. – The dude Aug 6 '13 at 9:20 ...
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How to select a CRAN mirror in R

I'm trying to install a package through the R prompt by doing the following: 11 Answers ...
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Why have header files and .cpp files? [closed]

...e way to NOT copy/paste, and still declare the symbol... How can we do it? By the include of some text file, which is commonly suffixed by .h, .hxx, .h++ or, my preferred for C++ files, .hpp: // B.HPP (here, we decided to declare every symbol defined in B.CPP) void doSomethingElse() ; // A.CPP #in...
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Xcode 4 - slow performance

...ed the alternative way. There is another nice trick to fasten up builds by creating a ram disk with the following line of code: diskutil erasevolume HFS+ "ramdisk" `hdiutil attach -nomount ram://8475854` This creates an in-memory disk image with a size of about 4 GB. But be careful, you need t...
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What's the difference between event.stopPropagation and event.preventDefault?

...doing the same thing... Is one modern and one old? Or are they supported by different browsers? 7 Answers ...