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How to check for an active Internet connection on iOS or macOS?

...nswers below are synchronous so be careful otherwise you'll freeze up your app. Swift 1) Install via CocoaPods or Carthage: https://github.com/ashleymills/Reachability.swift 2) Test reachability via closures let reachability = Reachability()! reachability.whenReachable = { reachability in ...
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Differences between “java -cp” and “java -jar”?

What is the difference between running a Java application with java -cp CLASSPATH and java -jar JAR_FILE_PATH ? Is one of them preferred to the other for running a Java application? I mean which one of these ways is more expensive for JVM (according to their machine resources usage)? ...
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What's the difference between Application.ThreadException and AppDomain.CurrentDomain.UnhandledExcep

... Application.ThreadException is specific to Windows Forms. Winforms runs event handlers in response to messages sent to it by Windows. The Click event for example, I'm sure you know them. If such an event handler throws an ...
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Storing DateTime (UTC) vs. storing DateTimeOffset

... This is the best explanation I have read about when it would be appropriate, and I have read a lot For us, from this, it does not seem so. We get the time in UTC for our external data, and we know the location from another source if needed (and it never has been). Thanks for making it ...
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window.location.reload with clear cache [duplicate]

...orks in IE and FF but not in Chrome, Safari. Anyone know how to make this happen in Chrome, Safari? – testpattern Oct 30 '12 at 13:31 2 ...
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Read and write a String from text file

...r: .documentDirectory, in: .userDomainMask).first { let fileURL = dir.appendingPathComponent(file) //writing do { try text.write(to: fileURL, atomically: false, encoding: .utf8) } catch {/* error handling here */} //reading do { let text2 = try String(c...
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Should I use `this` or `$scope`?

...ller as" is much more recent (as of version 1.2.0 officially though it did appear in unstable pre-releases prior to this). Both work perfectly well and the only wrong answer is to mix them in the same app without an explicit reason. Frankly, mixing them will work, but it will just add to the confu...
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Sending command line arguments to npm script

...ol Should output: { myVar: 'something' } Update: Using npm 3.10.3, it appears that it lowercases the process.env.npm_config_ variables? I'm also using better-npm-run, so I'm not sure if this is vanilla default behavior or not, but this answer is working. Instead of process.env.npm_config_myVar,...
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Creating virtual directories in IIS express

... IIS express configuration is managed by applicationhost.config. You can find it in Users\<username>\Documents\IISExpress\config folder. Inside you can find the sites section that hold a section for each IIS Express configured site. Add (or modify) a ...
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How to send SMS in Java

What are the possible ways to send and receive sms from Java application? 16 Answers 1...