that happens 2. check this, do that mechanics handled by your code value driven 1. when this value is 2. that value should be action driven mechanics handled by Ember Bindings
function(params) { return ic.ajax(‘/search/’+params.keyword) .then(function(posts){}, function(error){}); }}); ic-ajax: https://github.com/instructure/ic-ajax by Ryan Florence Guide: Loading / Error Substates Video: The Promise Land by Stefan Penner