no-function-prototype-extensions.md

Do not use Ember's function prototype extensions

Rule name: no-function-prototype-extensions

Use computed property syntax, observer syntax or module hooks instead of .property(), .observes() or .on() in Ember modules.

export default Component.extend({
    // BAD
    abc: function() { /* custom logic */ }.property('xyz'),
    def: function() { /* custom logic */ }.observes('xyz'),
    ghi: function() { /* custom logic */ }.on('didInsertElement'),

    // GOOD
    abc: computed('xyz', function() { /* custom logic */ }),
    def: observer('xyz', function() { /* custom logic */ }),
    didInsertElement() { /* custom logic */ }
});