Operators are functions that use a symbolic name. In Kotlin, many built-in operators are actually function calls. For example, array access is a real function:
val array = arrayOf(1, 2, 3) val element = array
In this example, the
 operation is translated into a call to the function
get(index: Int) defined on the
Many operators are predefined in Kotlin, just like they are in most other languages, and most operators tend to be combined with the infix style. This is immediately familiar in the guise of binary operators on numbers.
Although Kotlin treats operations on basic types as functions, they are compiled to the appropriate byte code operations to avoid function overhead and ensure maximum performance.
Often operators ...