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						- 
 - [Build]:    http://img.shields.io/travis/litejs/natural-compare-lite.png
 - [Coverage]: http://img.shields.io/coveralls/litejs/natural-compare-lite.png
 - [1]: https://travis-ci.org/litejs/natural-compare-lite
 - [2]: https://coveralls.io/r/litejs/natural-compare-lite
 - [npm package]: https://npmjs.org/package/natural-compare-lite
 - [GitHub repo]: https://github.com/litejs/natural-compare-lite
 - 
 - 
 - 
 -     @version    1.4.0
 -     @date       2015-10-26
 -     @stability  3 - Stable
 - 
 - 
 - Natural Compare – [![Build][]][1] [![Coverage][]][2]
 - ===============
 - 
 - Compare strings containing a mix of letters and numbers
 - in the way a human being would in sort order.
 - This is described as a "natural ordering".
 - 
 - ```text
 - Standard sorting:   Natural order sorting:
 -     img1.png            img1.png
 -     img10.png           img2.png
 -     img12.png           img10.png
 -     img2.png            img12.png
 - ```
 - 
 - String.naturalCompare returns a number indicating
 - whether a reference string comes before or after or is the same
 - as the given string in sort order.
 - Use it with builtin sort() function.
 - 
 - 
 - 
 - ### Installation
 - 
 - - In browser
 - 
 - ```html
 - <script src=min.natural-compare.js></script>
 - ```
 - 
 - - In node.js: `npm install natural-compare-lite`
 - 
 - ```javascript
 - require("natural-compare-lite")
 - ```
 - 
 - ### Usage
 - 
 - ```javascript
 - // Simple case sensitive example
 - var a = ["z1.doc", "z10.doc", "z17.doc", "z2.doc", "z23.doc", "z3.doc"];
 - a.sort(String.naturalCompare);
 - // ["z1.doc", "z2.doc", "z3.doc", "z10.doc", "z17.doc", "z23.doc"]
 - 
 - // Use wrapper function for case insensitivity
 - a.sort(function(a, b){
 -   return String.naturalCompare(a.toLowerCase(), b.toLowerCase());
 - })
 - 
 - // In most cases we want to sort an array of objects
 - var a = [ {"street":"350 5th Ave", "room":"A-1021"}
 -         , {"street":"350 5th Ave", "room":"A-21046-b"} ];
 - 
 - // sort by street, then by room
 - a.sort(function(a, b){
 -   return String.naturalCompare(a.street, b.street) || String.naturalCompare(a.room, b.room);
 - })
 - 
 - // When text transformation is needed (eg toLowerCase()),
 - // it is best for performance to keep
 - // transformed key in that object.
 - // There are no need to do text transformation
 - // on each comparision when sorting.
 - var a = [ {"make":"Audi", "model":"A6"}
 -         , {"make":"Kia",  "model":"Rio"} ];
 - 
 - // sort by make, then by model
 - a.map(function(car){
 -   car.sort_key = (car.make + " " + car.model).toLowerCase();
 - })
 - a.sort(function(a, b){
 -   return String.naturalCompare(a.sort_key, b.sort_key);
 - })
 - ```
 - 
 - - Works well with dates in ISO format eg "Rev 2012-07-26.doc".
 - 
 - 
 - ### Custom alphabet
 - 
 - It is possible to configure a custom alphabet
 - to achieve a desired order.
 - 
 - ```javascript
 - // Estonian alphabet
 - String.alphabet = "ABDEFGHIJKLMNOPRSŠZŽTUVÕÄÖÜXYabdefghijklmnoprsšzžtuvõäöüxy"
 - ["t", "z", "x", "õ"].sort(String.naturalCompare)
 - // ["z", "t", "õ", "x"]
 - 
 - // Russian alphabet
 - String.alphabet = "АБВГДЕЁЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдеёжзийклмнопрстуфхцчшщъыьэюя"
 - ["Ё", "А", "Б"].sort(String.naturalCompare)
 - // ["А", "Б", "Ё"]
 - ```
 - 
 - 
 - External links
 - --------------
 - 
 - -   [GitHub repo][https://github.com/litejs/natural-compare-lite]
 - -   [jsperf test](http://jsperf.com/natural-sort-2/12)
 - 
 - 
 - Licence
 - -------
 - 
 - Copyright (c) 2012-2015 Lauri Rooden <lauri@rooden.ee>  
 - [The MIT License](http://lauri.rooden.ee/mit-license.txt)
 - 
 - 
 
 
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