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OOjs
=================
OOjs is a JavaScript library for working with objects.
Key features include inheritance, mixins and utilities for working with objects.
<pre lang="javascript">
/* Example */
( function ( oo ) {
function Animal() {}
function Magic() {}
function Unicorn() {
Animal.call( this );
Magic.call( this );
}
oo.inheritClass( Unicorn, Animal );
oo.mixinClass( Unicorn, Magic );
}( OO ) );
</pre>
Quick start
----------
This library is available as an [npm](https://npmjs.org/) package! Install it right away:
<pre lang="bash">
npm install oojs
</pre>
Or clone the repo, `git clone https://git.wikimedia.org/git/oojs/core.git`.
ECMAScript 5
----------
OOjs is optimised for modern ECMAScript 5 environments. However, care has been taken to maintain
parser compatibility with ES3 engines (such as for IE 6-8).
No ES5 syntax or unpolyfillable features are used. To support ES3 engines, ensure an appropriate
polyfill is loaded before OOjs.
These are the methods used:
* Array.isArray
* Object.keys
* JSON.stringify
Additionally, Object.create is used if available. As it is impossible to fully polyfill, OOjs
includes a fallback implementing the minimal set of required features.
While there are no plans to ship a polyfill for remaining methods, we recommend the following and
use them ourselves in the unit tests to assert support for older browsers.
* [json2.js](https://github.com/douglascrockford/JSON-js) (only for IE6/IE7)
* [es5-shim.js](https://github.com/es-shims/es5-shim)
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 1.8.3 or higher is recommended.
Versioning
----------
We use the Semantic Versioning guidelines as much as possible.
Releases will be numbered in the following format:
`<major>.<minor>.<patch>`
For more information on SemVer, please visit http://semver.org/.
Bug tracker
-----------
Found a bug? Please report it in the [issue tracker](https://phabricator.wikimedia.org/maniphest/task/create/?projects=OOjs)!
Release
----------
Release process:
<pre lang="bash">
$ 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
</pre>
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