Learning Concurrency in Kotlin

Temporary context switch using withContext

When we are already in a suspending function we can change the context for a block of code using withContext(). This is a suspending function that will use the given context to execute the block of code. For example, if we need to execute an operation in a different thread but we will always wait for it to finish before continuing. Let's start with this example:

fun main(args: Array<String>)= runBlocking {    val dispatcher = newSingleThreadContext("myThread")    val name = async(dispatcher) {        // Do important operation here        "Susan Calvin"    }.await()    println("User: $name")}

Here we are using async() to do an operation using the context dispatcher, but since async() returns a Deferred<String>, we are forced ...