Expression in Kotlin

Question

If Java i++has an expression, but i++;is an expression operator, and semicolons (;) are optional in Kotlin, an i++expression or expression in Kotlin?

Answer 1

i++ is an expression because it has a value that you can assign to a variable, pass as an argument to a method, etc.

If you simply have i++and do nothing with its value, you use it as an instruction, that is, only for its side effects, and not for its value.