A tiny subset of Knockout for reactive programming
kor is a JavaScript library supporting reactive programming. It is actually just a tiny subset of the excellent Knockout library with all the stuff to do with binding to the DOM removed. This is because there are several ways to achieve the DOM-binding part (for example, React) but which lack anything as mature or helpful as Knockout's reactive programming support.
By cutting Knockout down to its core (or kor?) we end up with a library that is only 5.2 KB in size (minified+gzipped) and yet supplies the support needed for convenient reactive programming.
Given kor's obvious direct heritage, it would be ridiculous for me to claim authorship - I just deleted a bunch of stuff. At the same time the Knockout team have not decided to create this subset so they should not be blamed for any shortcomings it suffers from.
Therefore to give credit and blame where its due, let's say:
Copyright (c) Steven Sanderson, the Knockout.js team, and other contributors http://knockoutjs.com/, with parts deleted by Daniel Earwicker
MIT license - http://www.opensource.org/licenses/mit-license.php
The surviving functions work exactly the same as in Knockout. The only
difference is that when loaded by a script tag in the browser, the root object
is called kor
instead of ko
, to avoid collision with Knockout.
kor.observable
kor.observableArray
kor.computed
and kor.pureComputed
(prefer the latter)kor.extenders
and built-ins such as throttle
, rateLimit
kor.unwrap
and kor.peekObservable
kor.toJS
There are extension libraries that work alongside Knockout, such as Mapping or my own knockout.clear.
In the browser, if you are just using a script
tag to import kor, you would
need to "rename" kor by doing this before you load any extension libraries:
window.ko = window.kor;
Of course, this is only useful if the extension library is satisfied by the subset retained in kor.
(NB. I'm planning to fix knockout.clear so it automatically works with kor).