Learning Swift™ Programming

Printing Your Results

When you use the playground to test your code, you have two options for printing data. You can simply just write it, like this:

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var someString = "hi there"someString //prints "hi there" in the output area

You can also use println(), which prints to the console output area. When you are making a full-fledged app, compiling code outside a playground, you’ll want to use println(), like this, because just writing the variable will not do anything:

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var someString = "hi there"println(someString) //prints "hi there" in the console output