js-object-functional

Object-Functional programming paradigm for JavaScript, including change isolation, observables, and frozen views.

$3

``javascript
import {ObjectFunctional} from 'object-functional'

class CounterWithList extends ObjectFunctional ::
asAction = this.init
init(counter=0) ::
this.counter = counter
this.lst = Object.freeze @ @[] counter
return this

asAction = this.increment
increment(howHigh=1) ::
this.counter += howHigh
this.lst = Object.freeze @ this.lst.concat @ this.counter
return this

asAction = this.decrement
decrement(howLow=1) ::
this.counter -= howLow
this.lst = Object.freeze @ this.lst.concat @ this.counter
return this

last() ::
return this.lst[this.lst.length - 1]


// ...

const obj = new CounterWithList().init()
obj.subscribe @ view =>
console.log('Update:', {view})

setInterval @
() => obj.increment()
1000
`

$3


`javascript
import {asFunctionalProto} from 'object-functional'

const createCounterWithList = asFunctionalProto @:
counter: 0
lst: Object.freeze @ []

asAction: @{}
increment(howHigh=1) ::
this.counter += howHigh
this.lst = Object.freeze @ this.lst.concat @ this.counter
return this

decrement(howLow=1) ::
this.counter -= howLow
this.lst = Object.freeze @ this.lst.concat @ this.counter
return this

last() ::
return this.lst[this.lst.length - 1]

// ...

const obj = createCounterWithList()
obj.subscribe @ view =>
console.log('Update:', {view})

setInterval @
() => obj.increment()
1000
``