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Merge pull request #2550 from hamirmahal/feat/update-readability-of-7-microtask-queue

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close #2534 by slightly changing 7-microtask-queue
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Ilya Kantor 2021-04-17 20:08:18 +03:00 • committed by GitHub
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@ -30,7 +30,7 @@ As stated in the [specification](https://tc39.github.io/ecma262/#sec-jobs-and-jo
- The queue is first-in-first-out: tasks enqueued first are run first.
- Execution of a task is initiated only when nothing else is running.
Or, to say more simply, when a promise is ready, its `.then/catch/finally` handlers are put into the queue; they are not executed yet. When the JavaScript engine becomes free from the current code, it takes a task from the queue and executes it.
Or, to put it more simply, when a promise is ready, its `.then/catch/finally` handlers are put into the queue; they are not executed yet. When the JavaScript engine becomes free from the current code, it takes a task from the queue and executes it.
That's why "code finished" in the example above shows first.
@ -40,7 +40,7 @@ Promise handlers always go through this internal queue.
If there's a chain with multiple `.then/catch/finally`, then every one of them is executed asynchronously. That is, it first gets queued, then executed when the current code is complete and previously queued handlers are finished.
**What if the order matters for us? How can we make `code finished` run after `promise done`?**
**What if the order matters for us? How can we make `code finished` appear after `promise done`?**
Easy, just put it into the queue with `.then`: