Learning Concurrency in Kotlin

Coroutine builders

A coroutine builder is a function that takes a suspending lambda and creates a coroutine to run it. Kotlin provides many coroutine builders that adjust to many different common scenarios, such as:

• async(): Used to start a coroutine when a result is expected. It has to be used with caution because async() will capture any exception happening inside the coroutine and put it in its result. Returns a Deferred<T> that contains either the result or the exception.
• launch(): Starts a coroutine that doesn't return a result. Returns a Job that can be used to cancel its execution or the execution of its children.
• runBlocking(): Created to bridge blocking code into suspendable code. It's commonly used in main() methods and unit tests. ...