in this case `async()` is function (coroutine buil...

# coroutines

[gildor]

in this case async() is function (coroutine builder) and await is a function in interface Deferred (returned from async()) and both of them are part of kotlinx.coroutines library, not a part of language or stdlibrary.
You can write own implementations that doesn’t coupled with particular Promise/Feature implementation like in languages where async/await is part of the language

[gildor]

@satejs You can check docs and source code:
https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.experimental/async.html

kotlinx.coroutines itself is just library

[gildor]

also, you can use another coroutine builders, not only async

[satejs]

Oh okay, will check! Thanks! I've been through the videos by Roman, but still confused slightly