https://github.com/ljharb/concat-map
https://github.com/ljharb/concat-map
Last synced: 5 months ago
JSON representation
- Host: GitHub
- URL: https://github.com/ljharb/concat-map
- Owner: ljharb
- License: mit
- Created: 2022-10-10T14:03:43.000Z (almost 3 years ago)
- Default Branch: main
- Last Pushed: 2022-10-26T23:48:02.000Z (almost 3 years ago)
- Last Synced: 2025-01-04T07:36:44.497Z (9 months ago)
- Language: JavaScript
- Homepage:
- Size: 30.3 KB
- Stars: 3
- Watchers: 3
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- Funding: .github/FUNDING.yml
- License: LICENSE
Awesome Lists containing this project
README
# concat-map [![Version Badge][npm-version-svg]][package-url]
[![github actions][actions-image]][actions-url]
[![coverage][codecov-image]][codecov-url]
[![License][license-image]][license-url]
[![Downloads][downloads-image]][downloads-url]
[![npm badge][npm-badge-png]][package-url]
Concatenative mapdashery.
## example
``` js
var concatMap = require('concat-map');
var xs = [ 1, 2, 3, 4, 5, 6 ];
var ys = concatMap(xs, function (x) {
return x % 2 ? [ x - 0.1, x, x + 0.1 ] : [];
});
console.dir(ys);
```
```js
[ 0.9, 1, 1.1, 2.9, 3, 3.1, 4.9, 5, 5.1 ]
```
## methods
```js
var concatMap = require('concat-map')
```
concatMap(xs, fn)
-----------------
Return an array of concatenated elements by calling `fn(x, i)` for each element
`x` and each index `i` in the array `xs`.
When `fn(x, i)` returns an array, its result will be concatenated with the
result array. If `fn(x, i)` returns anything else, that value will be pushed
onto the end of the result array.
## install
With [npm](http://npmjs.org) do:
```sh
npm install concat-map
```
## license
MIT
## notes
This module was written while sitting high above the ground in a tree.
[package-url]: https://npmjs.org/package/concat-map
[npm-version-svg]: https://versionbadg.es/ljharb/concat-map.svg
[deps-svg]: https://david-dm.org/ljharb/concat-map.svg
[deps-url]: https://david-dm.org/ljharb/concat-map
[dev-deps-svg]: https://david-dm.org/ljharb/concat-map/dev-status.svg
[dev-deps-url]: https://david-dm.org/ljharb/concat-map#info=devDependencies
[npm-badge-png]: https://nodei.co/npm/concat-map.png?downloads=true&stars=true
[license-image]: https://img.shields.io/npm/l/concat-map.svg
[license-url]: LICENSE
[downloads-image]: https://img.shields.io/npm/dm/concat-map.svg
[downloads-url]: https://npm-stat.com/charts.html?package=concat-map
[codecov-image]: https://codecov.io/gh/ljharb/concat-map/branch/main/graphs/badge.svg
[codecov-url]: https://app.codecov.io/gh/ljharb/concat-map/
[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/concat-map
[actions-url]: https://github.com/ljharb/concat-map/actions