a|f|k|p|u|z)'
```

**Automatic separator correction**

To avoid this error:

> `Range out of order in character class`

Fill-range detects invalid sequences and uses the correct syntax. For example:

**invalid** (regex)

If you pass these:

```js
range('a', 'z', '~5');
// which would result in this
//=> ['[a-f-k-p-u-z]']

range('10', '20', '~');
// which would result in this
//=> ['[10-20]']
```

**valid** (regex)

fill-range corrects them to this:

```js
range('a', 'z', '~5');
//=> ['(a|f|k|p|u|z)'

range('10', '20', '~');
//=> ['(10-20)'
```

#### angle bracket

Character: _(`>`)_

Joins all values in the returned array to a single value.

**Examples:**

```js
range('a', 'e', '>');
//=> ['abcde']

range('5', '8', '>');
//=> ['5678']

range('2', '20', '2>');
//=> ['2468101214161820']
```

#### question mark

Character: _(`?`)_

Uses [randomatic] to generate randomized alpha, numeric, or alpha-numeric patterns based on the provided arguments.

**Examples:**

_(actual results would obviously be randomized)_

Generate a 5-character, uppercase, alphabetical string:

```js
range('A', 5, '?');
//=> ['NSHAK']
```

Generate a 5-digit random number:

```js
range('0', 5, '?');
//=> ['36583']
```

Generate a 10-character alpha-numeric string:

```js
range('A0', 10, '?');
//=> ['5YJD60VQNN']
```

See the [randomatic] repo for all available options and or to create issues or feature requests related to randomization.

## About

<details>
<summary><strong>Contributing</strong></summary>

Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).

</details>

<details>
<summary><strong>Running Tests</strong></summary>

Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:

```sh
$ npm install && npm test
```

</details>

<details>
<summary><strong>Building docs</strong></summary>

_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_

To generate the readme, run the following command:

```sh
$ npm install -g verbose/verb#dev verb-generate-readme && verb
```

</details>

### Related projects

You might also be interested in these projects:

* [braces](https://www.npmjs.com/package/braces): Bash-like brace expansion, implemented in JavaScript. Safer than other brace expansion libs, with complete support… [more](https://github.com/micromatch/braces) | [homepage](https://github.com/micromatch/braces "Bash-like brace expansion, implemented in JavaScript. Safer than other brace expansion libs, with complete support for the Bash 4.3 braces specification, without sacrificing speed.")
* [expand-range](https://www.npmjs.com/package/expand-range): Fast, bash-like range expansion. Expand a range of numbers or letters, uppercase or lowercase. Used… [more](https://github.com/jonschlinkert/expand-range) | [homepage](https://github.com/jonschlinkert/expand-range "Fast, bash-like range expansion. Expand a range of numbers or letters, uppercase or lowercase. Used by [micromatch].")
* [is-glob](https://www.npmjs.com/package/is-glob): Returns `true` if the given string looks like a glob pattern or an extglob pattern… [more](https://github.com/jonschlinkert/is-glob) | [homepage](https://github.com/jonschlinkert/is-glob "Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet")
* [micromatch](https://www.npmjs.com/package/micromatch): Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch. | [homepage](https://github.com/micromatch/micromatch "Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch.")

### Contributors

| **Commits** | **Contributor** | 
| --- | --- |
| 111 | [jonschlinkert](https://github.com/jonschlinkert) |
| 2 | [paulmillr](https://github.com/paulmillr) |
| 1 | [edorivai](https://github.com/edorivai) |
| 1 | [realityking](https://github.com/realityking) |
| 1 | [wtgtybhertgeghgtwtg](https://github.com/wtgtybhertgeghgtwtg) |

### Author

**Jon Schlinkert**

* [LinkedIn Profile](https://linkedin.com/in/jonschlinkert)
* [GitHub Profile](https://github.com/jonschlinkert)
* [Twitter Profile](https://twitter.com/jonschlinkert)

### License

Copyright © 2018, [Jon Schlinkert](https://github.com/jonschlinkert).
Released under the [MIT License](LICENSE).

***

_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on May 08, 2018._