Allows peeking/pushing an iterable
npm install it-peekable
> Allows peeking/pushing an iterable
Lets you look at the contents of an async iterator and decide what to do
``javascript
import peekable from 'it-peekable'
// This can also be an iterator, generator, etc
const values = [0, 1, 2, 3, 4]
const it = peekable(value)
const first = it.peek()
console.info(first) // 0
it.push(first)
console.info([...it])
// [ 0, 1, 2, 3, 4 ]
`
Async sources must be awaited:
`javascript
import peekable from 'it-peekable'
const values = async function * () {
yield * [0, 1, 2, 3, 4]
}
const it = peekable(values())
const first = await it.peek()
console.info(first) // 0
it.push(first)
console.info(await all(it))
// [ 0, 1, 2, 3, 4 ]
`
`console`
$ npm i it-peekable
-
Licensed under either of
- Apache 2.0, (LICENSE-APACHE /
- MIT (LICENSE-MIT /
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.