limivorous

An implementation of the Observable pattern for simple Javascript data models. Yes, another implementation of Observable for Javascript.

Why another Observable?

There are lots of implementations of Observable for Javascript - why right another one?

In part, as part of learning Javascript in a real project. And because my needs for that project were quite simple, I wanted to work in bare Javascript without pulling in a large framework. Many reactive frameworks for Javascript bundle templating along with their data modelling, and I wanted something simple that focused solely on the data model and change events.

limivorous is intended to work with simple data model objects built with the Javascript module pattern. The main requirements are:

• Support standard property get syntax, for compatibility with templating engines such as handlebars.
• Support a method chaining style or setting properties in addition to regular assignment.
• Don't require a browser

Example

var limivorous = require('limivorous')

Tag = function(data) {
  "use strict";

  var self = limivorous.observable()
                       .property('id')
                       .property('name')
                       .property('color', { init: 'red' } )
                       .build()

  /** Add any functions or other private storage */

  return self
}

t = Tag()
t.on('change:name', function(e) {
  console.log('Name changed from ' + e.previous + ' to ' + e.value)
})

Licence & copyright

Limivorous is copyright © 2014 Adam Alpern and licenced under the MIT licence. All rights not explicitly granted in the MIT license are reserved. See the included LICENSE file for more details.