prev-version

node-prev-version

low-level library for figuring out the "previous" release version

Installation

npm install --save prev-version

Usage

var prevVersion = require('prev-version');
var versions = [
  'v0.9.0',
  'v0.9.1',
  'v1.0.0-beta.1',
  'v0.9.2',
  'v1.0.0-beta.2',
  'v1.0.0',
  'v0.9.3',
  'v1.1.0-beta.1',
];
 
prevVersion('v0.9.0', versions); // -> null
prevVersion('v0.9.1', versions); // -> v0.9.0
prevVersion('v1.0.0-beta.1', versions); // -> v0.9.1
prevVersion('v0.9.2', versions); // -> v0.9.1
prevVersion('v1.0.0-beta.2', versions); // -> v1.0.0-beta.1 
prevVersion('v1.0.0', versions); // -> v0.9.2
prevVersion('v0.9.3', versions); // -> v0.9.2
prevVersion('v1.1.0-beta.1', versions); // -> v1.0.0

License

node-prev-version is licensed under the MIT License.