Swift supports operator overloading, which is a fancy way of saying that what an operator does depends on the values you use it with. For example,
+ sums integers like this:
let meaningOfLife = 42 let doubleMeaning = 42 + 42
+ also joins strings, like this:
let fakers = "Fakers gonna " let action = fakers + "fake"
You can even use
+ to join arrays, like this:
let firstHalf = ["John", "Paul"] let secondHalf = ["George", "Ringo"] let beatles = firstHalf + secondHalf
Remember, Swift is a type-safe language, which means it won’t let you mix types. For example, you can’t add an integer to a string because it doesn’t make any sense.
SPONSORED Instabug helps you identify and resolve severe crashes quickly. You can retrace in-app events and know exactly which line of code caused the crash along with environment details, network logs, repro steps, and the session profiler. Ask more questions or keep users up-to-date with in-app replies straight from your dashboard. Instabug takes data privacy seriously, so no one sees your data but you! See more detailed features comparison and try Instabug's crash reporting SDK for free.
The biggest ever Hacking with Swift sale is now on, letting you save 50% on all books and bundles. Learn something new with Swift and enjoy great savings while the sale lasts!