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Anyone know if there is a Promise.all() equivalent for `Deferred&lt;T&gt;` ?

<@UA6410VD2> <https://github.com/Kotlin/kotlinx.coroutines/issues/171>

I was getting confused because I was trying to do it from a non suspending function

but I guess I can put that map call inside an `async` call

sorry I'm literally just learning about coroutines properly now, but thanks!

<@UA6410VD2> I guess the most efficient way is to do:
```
arrayOf(
    async(coroutineContext) { ... },
    async(coroutineContext) { ... },
    async(coroutineContext) { ... }
).map { it.await() }
```

a forEach makes more sense actually right

<@UA6410VD2> You're right. If you don't need a list of the results, a `forEach` on an array is even more efficient

Check out <https://github.com/venkatperi/kotlin-coroutines-lib/blob/master/src/main/kotlin/com/vperi/kotlinx/coroutines/experimental/JobIterables.ext.kt#L90>