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Make minor grammar corrections/updates to async/promise-error-handling

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Jonathan Chue 2019-12-07 16:46:14 -08:00
parent 5b195795da
commit 375630bbd2
1 changed files with 2 additions and 2 deletions
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1-js/11-async/04-promise-error-handling/article.md
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@ -60,7 +60,7 @@ new Promise((resolve, reject) => {
new Promise((resolve, reject) => {
*!*
reject(new Error("Whoops!"));
*/!*
*/!*
}).catch(alert); // Error: Whoops!
```
@ -98,7 +98,7 @@ The final `.catch` not only catches explicit rejections, but also occasional err
As we already noticed, `.catch` at the end of the chain is similar to `try..catch`. We may have as many `.then` handlers as we want, and then use a single `.catch` at the end to handle errors in all of them.
In a regular `try..catch` we can analyze the error and maybe rethrow it if can't handle. The same thing is possible for promises.
In a regular `try..catch` we can analyze the error and maybe rethrow it if it can't be handled. The same thing is possible for promises.
If we `throw` inside `.catch`, then the control goes to the next closest error handler. And if we handle the error and finish normally, then it continues to the closest successful `.then` handler.