javascript - How to have both observer and on init for ember js properties -

new ember rules states need use below pattern

propobserver: ember.observer(function () {    //code })

instead of

propobserver: function() {     //code }.observers('someprop')

before updating ember below

propobserver: function () {     //code }.observes('someprop').on('init')

how achieve cascading?

now know can separately

propobserver: ember.observer('someprop', function () {    //code })  propobserver: ember.on('init', function () {        //code })

propobserver: ember.on('init', ember.observer('someprop', function() {     // code }))

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