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kotlinlang

What's difference between CoroutineScope(<http://Dispatchers.IO|Dispatchers.IO>) + Job() and CoroutineScope(<http://Dispatchers.IO|Dispatchers.IO>+ Job())

It's the same thing:
```/**
 * Adds the specified coroutine context to this scope, overriding existing elements in the current
 * scope's context with the corresponding keys.
 *
 * This is a shorthand for `CoroutineScope(thisScope + context)`.
 */
public operator fun CoroutineScope.plus(context: CoroutineContext): CoroutineScope =
    ContextScope(coroutineContext + context)```

I wish I could "open in github" from IntelliJ depenencies but if you look for `CoroutineScope.kt`  in the coroutines repo, you'll find it

`CoroutineScope(<http://Dispatchers.IO|Dispatchers.IO>)` will add a Job by default so you can leave out the Job in all cases

The latter elides an object allocation, so prefer that one if it makes sense in your code.