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Added a lot of commas here and there.
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Atlas Sullivan 2018-09-26 01:42:44 +01:00 • committed by GitHub
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6-async/05-async-await/article.md
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@ -34,7 +34,7 @@ async function f() {
f().then(alert); // 1 f().then(alert); // 1
``` ```
So, `async` ensures that the function returns a promise, wraps non-promises in it. Simple enough, right? But not only that. There's another keyword `await` that works only inside `async` functions, and it's pretty cool. So, `async` ensures that the function returns a promise, and wraps non-promises in it. Simple enough, right? But not only that. There's another keyword, `await`, that works only inside `async` functions, and it's pretty cool.
## Await ## Await
@ -183,7 +183,7 @@ The meaning is the same: it ensures that the returned value is a promise and ena
```` ````
## Error handling ## Error handling
If a promise resolves normally, then `await promise` returns the result. But in case of a rejection it throws the error, just if there were a `throw` statement at that line. If a promise resolves normally, then `await promise` returns the result. But in case of a rejection, it throws the error, just if there were a `throw` statement at that line.
This code: This code:
@ -205,7 +205,7 @@ async function f() {
} }
``` ```
In real situations the promise may take some time before it rejects. So `await` will wait, and then throw an error. In real situations, the promise may take some time before it rejects. So `await` will wait, and then throw an error.
We can catch that error using `try..catch`, the same way as a regular `throw`: We can catch that error using `try..catch`, the same way as a regular `throw`: