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Understanding NSRunLoop

... run loop directly, though there are some (networking) components that may allow you to specify which run loop they will use for I/O processing. A run loop for a given thread will wait until one or more of its input sources has some data or event, then fire the appropriate input handler(s) to proce...
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Reading binary file and looping over each byte

...hile byte != "": # Do stuff with byte. byte = f.read(1) finally: f.close() Python 2.5-2.7 with open("myfile", "rb") as f: byte = f.read(1) while byte != "": # Do stuff with byte. byte = f.read(1) Note that the with statement is not available in versio...
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What is the list of valid @SuppressWarnings warning names in Java?

...pends on your IDE or compiler. Here is a list for Eclipse Galileo: all to suppress all warnings boxing to suppress warnings relative to boxing/unboxing operations cast to suppress warnings relative to cast operations dep-ann to suppress warnings relative to deprecated annotation depr...
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Why does my JavaScript code receive a “No 'Access-Control-Allow-Origin' header is present on the req

...ferent domain than your page is on. So the browser is blocking it as it usually allows a request in the same origin for security reasons. You need to do something different when you want to do a cross-domain request. A tutorial about how to achieve that is Using CORS. When you are using postman the...
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How to update npm

I'm trying to install mean.io boilerplate. It fails when running sudo npm install -g meanio@latest . Prior to failing it notes that it 'wants' npm version 1.4.x, whereas I have 1.2.18 installed. So I tried updating npm to the latest; several ways. Last of which was... ...
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What is “callback hell” and how and why does RX solve it?

... clear definition together with a simple example that explains what is a "callback hell" for someone who does not know JavaScript and node.js ? ...
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How to create SBT project with IntelliJ Idea?

...Sbt developing, and I'd like to import a Sbt project in IntelliJ Idea. Actually, I managed to import my project in two different ways: ...
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How to count the frequency of the elements in an unordered list?

... @CristianCiupitu: sum(1 for _ in group). – Martijn Pieters♦ Jul 29 '16 at 7:25 8 ...
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Are there any downsides to passing structs by value in C, rather than passing a pointer?

... For small structs (eg point, rect) passing by value is perfectly acceptable. But, apart from speed, there is one other reason why you should be careful passing/returning large structs by value: Stack space. A lot of C programming ...
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What is Haskell used for in the real world? [closed]

... to be able to easily roll back every change if some object deep in the call hierarchy decided the message is flawed? How about having a history of different states? Many housekeeping tasks made for you: deconstructing data structures (PatternMatching), storing variable bindings (LexicalScop...