“+” in Kotlin Coroutines?

Question

This is example code for a Cancellation via explicit job for Kotlin Coroutines:

fun main(args: Array) = runBlocking {
    val job =         


        

Answer 1

It’s an example of operator overloading. The following shows the documentation of method CoroutineContext::plus:

open operator fun plus(context: CoroutineContext): CoroutineContext

Returns a context containing elements from this context and elements from other context. The elements from this context with the same key as in the other one are dropped.

It’s basically a merge of two contexts.