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How is Node.js inherently faster when it still relies on Threads internally?
I just watched the following video: Introduction to Node.js and still don't understand how you get the speed benefits.
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Why java.io.File doesn't have a close() method?
While java.io.RandomAccessFile does have a close() method java.io.File doesn't. Why is that? Is the file closed automatically on finalization or something?
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iPhone and OpenCV
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OpenCV now (since 2012) has an official port for the iPhone (iOS).
You can find all of OpenCV's releases here.
And find install instructions here:
Tutorials & introduction for the new version 3.x
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Creating a blurring overlay view
In the Music app of the new iOS, we can see an album cover behind a view that blurs it.
25 Answers
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appearanceWhenContainedIn in Swift
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Update for iOS 9:
If you're targeting iOS 9+ (as of Xcode 7 b1), there is a new method in the UIAppearance protocol which does not use varargs:
static func appearanceWhenContainedInInstancesOfClasses(containerTypes: [AnyObject.Type]) ...
Maximum concurrent Socket.IO connections
This question has been asked previously but not recently and not with a clear answer.
5 Answers
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How does TestFlight do it?
TestFlight offers over-the-air beta distribution of iOS apps (on non-jailbroken devices). How can this be done? Is this an iOS feature, or a vulnerability exploit?
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iOS 7 - How to display a date picker in place in a table view?
...C 2013 video, Apple suggests displaying picker in place in a table view in iOS 7. How to insert and animate a view between table view cells?
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Is there any way to see the file system on the iOS simulator?
...re any way to browse the file system of a currently running or just killed iOS simulator? I'd settle for being able to see a specific app's files if there's a way to do that.
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How the single threaded non blocking IO model works in Node.js
...de programmer, but I'm interested in how the single threaded non blocking IO model works.
After I read the article understanding-the-node-js-event-loop , I'm really confused about it.
It gave an example for the model:
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