ko-contrib-fns

Table of Contents

• ko.observable.fn.increment/decrement
• ko.observable.fn.subscribeOnce
• ko.observable.fn.toString

observable.fn.increment/decrement([n = 1])

increments/decrements numeric observables.

import 'ko-contrib-fns/increment'
 
const foo = ko.observable(0)
 
foo.increment()
foo.increment(3)
foo.decrement()
foo.decrement(2)
foo()
// 1

observable.fn.subscribeOnce(fn)

Creates a subscription that is called once and then disposed.

import 'ko-contrib-fns/subscribeOnce'
 
const foo = ko.observable(0)
 
foo.subscribeOnce(() => console.log('hit!'))
 
foo(1)
// hit!
 
foo(2)
// nothing...

observable.fn.toString()

Make debugging in the console much nicer; you won't ever need to actually call this.

import 'ko-contrib-fns/toString'