javascript - Observer not working in Ember? -

javascript - Observer not working in Ember? -

i can't observer in ember.js. basically, have ember.select dropdown menu, , want bind more action event of selecting value in dropdown. example:

app.selectedpersoncontroller = ember.object.create({ person: null, persondidchange: function() { // here when person changes console.log("person changed") }.observes('person') });

and nil happening, though 'person' attribute getting updated. suggestions?

this due fact of version pre4 cannot set property or observable upon em.*.create() function. have first utilize .extend() function first , set properties , observables in that, create object.

as example, take @ jsfiddle working extend functionality. seek take away using create , you'll see app no longer works.

javascript javascript-events ember.js