it-length

Counts the number of items in an async iterable

About

Counts the number of items in an (async)iterable.

N.b. will consume the iterable

Example

import length from 'it-length'

// This can also be an iterator, generator, etc
const values = [0, 1, 2, 3, 4]

const res = length(values)

console.info(res) // 5

Async sources must be awaited:

import length from 'it-length'

const values = async function * () {
  yield * [0, 1, 2, 3, 4]
}

const res = await length(values())

console.info(res) // 5

Install

$ npm i it-length

Browser <script> tag

Loading this module through a script tag will make it's exports available as ItLength in the global namespace.

<script src="https://unpkg.com/it-length/dist/index.min.js"></script>

API Docs

• https://achingbrain.github.io/it/modules/it_length.html

License

Licensed under either of

• Apache 2.0, (LICENSE-APACHE / http://www.apache.org/licenses/LICENSE-2.0)
• MIT (LICENSE-MIT / http://opensource.org/licenses/MIT)

Contribution

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.