Observable

Installation

Node

npm install o_0

Usage

Observable = require "o_0"

Get notified when the value changes.

observable = Observable 5

observable() # 5

observable.observe (newValue) ->
  console.log newValue

observable 10 # logs 10 to console

Arrays

Proxy array methods.

observable = Observable [1, 2, 3]

observable.forEach (value) ->
  # 1, 2, 3

Functions

Automagically compute dependencies for observable functions.

firstName = Observable "Duder"
lastName = Observable "Man"

o = Observable ->
  "#{firstName()} #{lastName()}"

o.observe (newValue) ->
  assert.equal newValue, "Duder Bro"

lastName "Bro"