Run Swift

// Declare a function with 'inout' parameters func append(inout str:String, withString:String) { str += withString } // Declare string variable var myString = "Hello" // Call the function with a reference - & // to our 'myString' variable append(&myString, withString:" World!") // The string variable will have now changed print(myString)

  

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Foundation framework not available
Swift version 4.0.3
@ Ubuntu 16.04
 

Run Swift is a web tool where you can easily try Apple's Swift language online. Just paste any snippet and click    Run . You may also    Save  your scripts and/or share with the world. If what you're looking for is an easy-to-use tool for your Mac, to quickly test and run Swift code, then you may want to have a look at our Run Swift app for MacOS.