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How can I extract a good quality JPEG image from a video file with ffmpeg?

Currently I am using this command to extract the images: 2 Answers 2 ...
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Search in all files in a project in Sublime Text 3

Is there a way to search for a string in all files inside a project in Sublime Text 3? The string is not a method. 5 Answer...
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Why does this code using random strings print “hello world”?

The following print statement would print "hello world". Could anyone explain this? 15 Answers ...
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How can I correctly prefix a word with “a” and “an”?

I have a .NET application where, given a noun, I want it to correctly prefix that word with "a" or "an". How would I do that? ...
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Understanding the map function

Apply function to every item of iterable and return a list of the results. If additional iterable arguments are passed, function must take that many arguments and is applied to the items from all iterables in parallel. ...
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How to load a UIView using a nib file created with Interface Builder

I'm trying to do something a bit elaborate, but something that should be possible. So here is a challenge for all you experts out there (this forum is a pack of a lot of you guys :) ). ...
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Is there a difference between YES/NO,TRUE/FALSE and true/false in objective-c?

Simple question really; is there a difference between these values (and is there a difference between BOOL and bool)? A co-worker mentioned that they evaluate to different things in Objective-C, but when I looked at the typedefs in their respective .h files, YES/TRUE/true were all defined as 1 an...
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How does @synchronized lock/unlock in Objective-C?

Does @synchronized not use "lock" and "unlock" to achieve mutual exclusion? How does it do lock/unlock then? 5 Answers ...
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Why use bzero over memset?

In a Systems Programming class I took this previous semester, we had to implement a basic client/server in C. When initializing the structs, like sock_addr_in , or char buffers (that we used to send data back and forth between client and server) the professor instructed us to only use bzero and ...
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How can I count the number of matches for a regex?

Let's say I have a string which contains this: 5 Answers 5 ...