Implement sort by cp-ing @jxnblk's code

Author: johno

.editorconfig

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+# http://editorconfig.org
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.md]
+trim_trailing_whitespace = false

.gitignore

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+node_modules/

.travis.yml

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+language: node_js
+node_js:
+  - 'stable'
+  - '5'
+  - '4'

index.js

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+'use strict'
+
+// Originally written by @jxnblk
+// https://github.com/cssstats/cssstats/blob/16fe37c96623fd3cdb24bd302ef6f6e93826af0f/controllers/stats.js#L98
+module.exports = units => units.sort(sortFn)
+
+const sortFn = (a, b) => {
+	const aa = convert(a)
+	const bb = convert(b)
+
+	if (aa === bb) return 0
+	return aa < bb ? 1 : -1
+}
+
+const convert = value => {
+	let raw
+
+	if (typeof value !== 'string') {
+		value = value.toString()
+	}
+
+	raw = parseFloat(value, 10)
+
+	if (value.match(/px$/)) return raw
+	if (value.match(/em$/)) return raw * 16
+	if (value.match(/%$/)) return raw * .16
+
+	switch (value) {
+		case 'inherit':
+			return 16
+		case 'xx-small':
+			return 9
+		case 'x-small':
+			return 10
+		case 'small':
+			return 13
+		case 'medium':
+			return 16
+		case 'large':
+			return 18
+		case 'x-large':
+			return 24
+		case 'xx-large':
+			return 32
+		case 'small':
+			return 13
+		case 'larger':
+			return 19
+		default:
+			return 1024
+	}
+}

license

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+The MIT License (MIT)
+
+Copyright (c) 2016 John Otander
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

package.json

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+{
+  "name": "css-unit-sort",
+  "description": "Sort css values no matter the unit",
+  "author": "John Otander",
+  "version": "0.1.0",
+  "main": "index.js",
+  "files": [
+    "index.js"
+  ],
+  "scripts": {
+    "test": "ava -v"
+  },
+  "repository": "cssstats/css-unit-sort",
+  "keywords": [],
+  "license": "MIT",
+  "dependencies": {},
+  "devDependencies": {
+    "ava": "*"
+  }
+}

readme.md

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+# css-unit-sort [![Build Status](https://secure.travis-ci.org/cssstats/css-unit-sort.svg?branch=master)](https://travis-ci.org/cssstats/css-unit-sort) [![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat)](https://github.com/feross/standard)
+
+Sort css values no matter the unit.
+Originally [written](https://github.com/cssstats/cssstats/blob/16fe37c96623fd3cdb24bd302ef6f6e93826af0f/controllers/stats.js#L98) by [@jxnblk](https://twitter.com/jxnblk).
+
+## Installation
+
+```bash
+npm i -S css-unit-sort
+```
+
+## Usage
+
+```javascript
+const cssUnitSort = require('css-unit-sort')
+
+cssUnitSort([
+  '2rem', 'inherit', 'small', '12px', '20px', '60px', '1.5em'
+]) // => ['60px', '2rem', '1.5em', '20px', 'inherit', 'small', '12px']
+```
+
+## License
+
+MIT
+
+## Contributing
+
+1. Fork it
+2. Create your feature branch (`git checkout -b my-new-feature`)
+3. Commit your changes (`git commit -am 'Add some feature'`)
+4. Push to the branch (`git push origin my-new-feature`)
+5. Create new Pull Request
+
+Crafted with <3 by John Otander ([@4lpine](https://twitter.com/4lpine)).
+
+***
+
+> This package was initially generated with [yeoman](http://yeoman.io) and the [p generator](https://github.com/johnotander/generator-p.git).

test.js

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+import test from 'ava'
+import cssUnitSort from './'
+
+test('sorts units', t => {
+  t.deepEqual(cssUnitSort([
+    '2rem', 'inherit', 'small', '12px', '20px', '60px', '1.5em'
+  ]), [
+    '60px', '2rem', '1.5em', '20px', 'inherit', 'small', '12px'
+  ])
+})