[](https://www.npmjs.com/package/oojs) [](https://david-dm.org/wikimedia/oojs#info=devDependencies) OOjs ================= OOjs is a JavaScript library for working with objects. Key features include inheritance, mixins and utilities for working with objects.
/* Example */
( function ( oo ) {
function Animal() {}
function Magic() {}
function Unicorn() {
Animal.call( this );
Magic.call( this );
}
oo.inheritClass( Unicorn, Animal );
oo.mixinClass( Unicorn, Magic );
}( OO ) );
Quick start
----------
This library is available as an [npm](https://npmjs.org/) package! Install it right away:
npm install oojs
Or clone the repo, `git clone https://phabricator.wikimedia.org/diffusion/GOJS/oojs.git`.
ECMAScript 5
----------
OOjs requires a modern ECMAScript 5 environment. It is not necessarily compatible with ES3 engines (such as for IE 6-8). For ES3 environments, the old 1.x releases are available but not recommended.
jQuery
----------
If your project uses jQuery, use the optimised `oojs.jquery.js` build instead.
This build assumes jQuery is present and omits various chunks of code in favour of references to jQuery.
jQuery 3.0.0 or higher is required.
Versioning
----------
We use the Semantic Versioning guidelines as much as possible.
Releases will be numbered in the following format:
`
$ cd path/to/oojs/
$ git remote update
$ git checkout -B release -t origin/master
# Ensure tests pass
$ npm install && npm test
# Avoid using "npm version patch" because that creates
# both a commit and a tag, and we shouldn't tag until after
# the commit is merged.
# Update release notes
# Copy the resulting list into a new section on History.md
$ git log --format='* %s (%aN)' --no-merges --reverse v$(node -e 'console.log(require("./package.json").version);')...HEAD
$ edit History.md
# Update the version number
$ edit package.json
$ git add -p
$ git commit -m "Tag vX.X.X"
$ git review
# After merging:
$ git remote update
$ git checkout origin/master
$ git tag "vX.X.X"
$ git push --tags
$ npm publish