How to check if a “lateinit” variable has been initialized?

Question

I wonder if there is a way to check if a lateinit variable has been initialized. For example:

class Foo() {

    private lateinit var myFile: Fi         


        

Answer 1

Accepted answer gives me a compiler error in Kotlin 1.3+, I had to explicitly mention the this keyword before ::. Below is the working code.

lateinit var file: File

if (this::file.isInitialized) {

    // file is not null
}