Compare semver version strings to find greater, equal or lesser. Runs in the browser as well as Node.js/React Native etc. Has no dependencies and is tiny (<600 bytes gzipped).

This library supports the full semver specification, including comparing versions with different number of digits like 1.0.0, 1.0, 1, and pre-release versions like 1.0.0-alpha. Additionally supports the following variations:

Supports wildcards for minor and patch version like 1.0.x or 1.0.*.
Supports Chromium version numbers with 4 parts, e.g. version 25.0.1364.126.
Any leading v is ignored, e.g. v1.0 is interpreted as 1.0.
Leading zero is ignored, e.g. 1.01.1 is interpreted as 1.1.1.

Install

$ npm install compare-versions

Usage

var compareVersions = require('compare-versions');

compareVersions('10.1.8', '10.0.4'); //  1
compareVersions('10.0.1', '10.0.1'); //  0
compareVersions('10.1.1', '10.2.2'); // -1

Can also be used for sorting:

var versions = [
  '1.5.19',
  '1.2.3',
  '1.5.5'
]
var sorted = versions.sort(compareVersions);
/*
[
  '1.2.3',
  '1.5.5',
  '1.5.19'
]
*/

Browser

If included directly in the browser, compareVersions() is available on the global window:

<script src="compare-versions/index.js"></script>
<script>
  window.compareVersions('10.0.0', '10.1.0');
</script>