observ-sync-length 

> Sync the length of two observ-array arrays

Install

``
$ npm install --save observ-sync-length
`

Usage

`js
var syncLength = require('observ-sync-length')
var ObservArray = require('observ-array')

var source = ObservArray([])
var destination = ObservArray([])

var unlisten = syncLength(source, destination)
source.push({})
destination().length
//=> 1
`

API

#### syncLength(source, destination, Constructor) -> function

Return an unlisten function.

##### source / destination

Required
Type: function

observ-array instances

##### Constructor

Type: function
Default: noop

A function to call to construct new items added to the destination` when the length of the source grows.

License

MIT © Ben Drucker