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"allows to" -> "allows us to" (2x)

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Peter Roche 2020-02-28 23:48:18 -07:00 • committed by GitHub
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1-js/12-generators-iterators/2-async-iterators-generators/article.md
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@ -109,7 +109,7 @@ As we can see, the structure is similar to regular iterators:
1. To make an object asynchronously iterable, it must have a method `Symbol.asyncIterator` `(1)`.
2. This method must return the object with `next()` method returning a promise `(2)`.
3. The `next()` method doesn't have to be `async`, it may be a regular method returning a promise, but `async` allows to use `await`, so that's convenient. Here we just delay for a second `(3)`.
3. The `next()` method doesn't have to be `async`, it may be a regular method returning a promise, but `async` allows us to use `await`, so that's convenient. Here we just delay for a second `(3)`.
4. To iterate, we use `for await(let value of range)` `(4)`, namely add "await" after "for". It calls `range[Symbol.asyncIterator]()` once, and then its `next()` for values.
Here's a small cheatsheet:
@ -268,7 +268,7 @@ So far we've seen simple examples, to gain basic understanding. Now let's review
There are many online services that deliver paginated data. For instance, when we need a list of users, a request returns a pre-defined count (e.g. 100 users) - "one page", and provides a URL to the next page.
This pattern is very common. It's not about users, but just about anything. For instance, GitHub allows to retrieve commits in the same, paginated fashion:
This pattern is very common. It's not about users, but just about anything. For instance, GitHub allows us to retrieve commits in the same, paginated fashion:
- We should make a request to URL in the form `https://api.github.com/repos/<repo>/commits`.
- It responds with a JSON of 30 commits, and also provides a link to the next page in the `Link` header.