1

Hello, total Swift beginner here...

Can someone kindly explain to me what the role of $0 is in the setter for binding for the following code?

Any help would be greatly appreciated.

Screen Shot 2021-08-10 at 4.00.30 PM
Screen Shot 2021-08-10 at 4.00.30 PM1134×602 63.5 KB

2

It represents the new value being passed to the setter

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3

Thanks for the reply. Would this be an example of shorthand closure syntax?

4

Yes, and it's also known as an anonymous closure argument (per Closures — The Swift Programming Language (Swift 5.7)).

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5

Amazing, I will check that out. Thanks so much.