原生选择控件在 Ember 2.x 里的基础用法

application.controller.js

import Ember from 'ember';

export default Ember.Controller.extend({  
  choices: Ember.A([
    '苹果', '橘子', '香蕉', '梨子'
  ]),
  
  actions: {
    selectChanged(value) {
      alert(value)
    }
  }
});

application.template.hbs

<h1>演示：原生选择控件在 Ember 2.x 里的基础用法</h1>

<select onchange={{action 'selectChanged' value="target.value"}}>
  {{#each choices as |choice|}}
    <option value={{choice}} selected={{is-equal value choice}}>{{choice}}</option>
  {{/each}}
</select>

helpers.is-equal.js

import Ember from 'ember';

export function isEqual(params/*, hash*/) {
  return (params[0] === params[1]);
}

export default Ember.Helper.helper(isEqual);

twiddle.json

{
  "version": "0.4.16",
  "EmberENV": {
    "FEATURES": {}
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.1.0/ember.debug.js",
    "ember-data": "https://cdnjs.cloudflare.com/ajax/libs/ember-data.js/2.1.0/ember-data.js",
    "ember-template-compiler": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.1.0/ember-template-compiler.js"
  }
}