How to determine if a variable with the lateinit modifier has been initialized in Kotlin?

In Kotlin, to check whether a variable with the lateinit modifier has been initialized, the isInitialized property of the variable's reflection is used. This works only for class properties declared with lateinit var.

Example:

class Example {
    lateinit var text: String

    fun isTextInitialized(): Boolean {
        return this::text.isInitialized
    }
}

fun main() {
    val example = Example()
    println(example.isTextInitialized()) // false
    example.text = "Hello"
    println(example.isTextInitialized()) // true
}

Thus, you can safely check if a variable has been initialized before using it to avoid an UninitializedPropertyAccessException.