flat-util

flat-util

Flatten a nested array.

The nesting can be to any depth. If you pass shallow, the array will only be flattened one level.

Features

• Small utility to flatten nested arrays.
• Free of TypeScript. 😄

Install

Install with npm

$ npm install flat-util

Or unpkg

<script src="https://unpkg.com/flat-util@1.1.9/umd/index.js" />

Check out the unit tests on CodePen.

Usage

const flatten = require('flat-util');

flatten([1, 2, [3, 4]]);
//=> [1, 2, 3, 4]

flatten([1, [2], [3, [[4]]]]);
//=> [1, 2, 3, 4];

flatten([1, [2], [3, [[4]]]], true);
//=> [1, 2, 3, [[4]]];

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API

flatten(input, shallow)

input

Type: array
Default: none

The array to flatten.

shallow

Type: boolean
Default: false

Whether or not to flatten the array only one level.

License

MIT