Koelle Sort

Also known as alphanum sort

alphanum sort is designed to produce more sensible results than ascii sort for certain use cases

Behaviour

• Sorts alphanumeric strings
• Sorts numbers
• Sorts letters
• Sorts a number of different date formats
• Sorts decimal numbers
• Sorts zero padded numbers
• Sorts simple and complex filenames
• Sorts empty strings
• Sorts by number first

Notable Unsupported Behaviour

• Does not skip whitespace
• Does not support numbers separated by multiple decimal points (e.g. IP Address, Semver formatting)

Usage

npm install @cablanchard/koelle-sort

const { alphanum } = require("@cablanchard/koelle-sort");

const sorted = [
    "file10.txt",
    "file1.txt",
    "file2.txt",
].sort(alphanum);

/**
 * [
 * "file1.txt",
 * "file2.txt",
 * "file10.txt",
 * ]
 */

License

Based on the alphanum algorithm developed by Dave Koelle

This implementation is MIT licensed