[英]Ember - How to add/remove elements from an array property on controller
Given a controller in ember: 给出一个ember中的控制器:
export default Ember.Controller.extend({
stringProp: "",
arrayProp: []
});
You can, for example, set the string property with this.set('stringProp', "Blah blah")
. 例如,您可以使用
this.set('stringProp', "Blah blah")
设置字符串属性。 But that is overriding. 但这是最重要的。 What I want to do is push to the array property.
我想要做的是推送到数组属性。
Is there a better (either shorter or faster) way than this: 是否有比这更好(更短或更快)的方式:
this.set('arrayProp', this.get('arrayProp').push(element));
Also, is there a shortcut for removing elements from such an array property? 此外,是否有从这样的数组属性中删除元素的快捷方式?
You are looking for pushObject
, removeObject
, etc. See http://emberjs.com/api/classes/Ember.MutableArray.html . 您正在寻找
pushObject
, removeObject
等。请参阅http://emberjs.com/api/classes/Ember.MutableArray.html 。
this.get('arrayProp').pushObject(element);
For correct behavior by computed properties and observers, it is strongly recommended you use these methods instead of push
or other native Array methods. 对于计算属性和观察者的正确行为,强烈建议您使用这些方法而不是
push
或其他本机Array方法。
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