Perhaps it's just as simple as "square braces are ...

# getting-started

[Nate Emmons]

Perhaps it's just as simple as "square braces are syntactic sugar for calling the 'set' method on the given object"?

[Nate Emmons]

ah, yeah, that's it. https://spring.io/guides/tutorials/spring-boot-kotlin/ sorry, as usual i find my own answer immediately after asking the question.

[Casey Brooks]

The general term for this in Kotlin is “operator overloading”, and operator functions can be implemented either as member or extension functions https://kotlinlang.org/docs/operator-overloading.html#indexed-access-operator

[Nate Emmons]

Thank you very much for the reference, i appreciate it. That makes perfect sense.

[Nate Emmons]

This is a beautiful language