A version is a set of numbers that identify a unique evolution of a system. :running: :vhs: :package: :moon: :ledger:

Methods as separate packages:

• @extra-version/next: use rollup to bundle this es module.
• @extra-version/next.min: use in browser (browserify, uglify-js).

Most of the ideas are from Semantic versioning by Tom Preston, and semver by Isaac Schlueter.

Stability: Experimental.

const version = require('extra-version');
// import * as version from 'extra-version';
// import * as version from 'https://unpkg.com/[email protected]/index.mjs'; (deno)

var x = version.from('v1.2.3.4');
x.toString();
// '1.2.3+4'

var x = version.from('0.2');
version.isUnstable(x);
// true

var x = version.from('1.2');
var y = version.from('1.2.3');
version.compare(x, y);
// -3

var x = version.from('1.2');
var y = version.next(x, version.MINOR);
y.toString();
// '1.3.0'

reference

| Method | Action |-----------------------|------- | is | Checks if value is version. | isUnstable | Checks if version is major 0, or pre-release. | from | Converts value to version. | parse | Converts string to version. | stringify | Converts version to string. | compare | Compares two versions. | isEqual | Checks if two versions are equal. | next | Gives the next version. | | | MAJOR | Defines first major version. (1.0.0) | MINOR | Defines first minor version. (0.1.0) | PATCH | Defines first patch version. (0.0.1) | RVERSION | Regular expression to check a semver string.