我可以在 EcmaScript 5 中使用新的 get 和 set 在一个声明中创建一个 javascript 函数吗？

Question

我对用作 Angular.js 控制器的 ES5 getter 和 setter 非常感兴趣。目前我正在做：

var helloEC5 = function(){
  //constructor
  this.pants = "jeans";
};
helloEC5.prototype = {
    firstName: 'Seeya',
    lastName: 'Latir',
    get fullName() {
      console.log("get")
        return this.firstName + ' ' + this.lastName;
    },
    set fullName (name) {
      console.log('set')
        var words = name.toString().split(' ');
        this.firstName = words[0] || '';
        this.lastName = words[1] || '';
    }
}; 

但是有没有办法在 function() 中简洁地做到这一点？我真正想要的是（伪代码）；

var helloEC5 = function() {
    firstName: 'Seeya',
    lastName: 'Latir',
    get fullName() {
      console.log("get")
        return this.firstName + ' ' + this.lastName;
    },
    set fullName (name) {
      console.log('set')
        var words = name.toString().split(' ');
        this.firstName = words[0] || '';
        this.lastName = words[1] || '';
    }
}; 

Answer 1

您可以使用Object.defineProperty() 方法 (http://jsfiddle.net/ydhLbwg6/)：

var helloEC5 = function () {
    this.firstName = 'Seeya';
    this.lastName = 'Latir';
    Object.defineProperty(this, 'fullName', {
        get: function () {
            console.log('get');
            return this.firstName + ' ' + this.lastName;
        },
        set: function (value) {
            console.log('set');
            var words = value.toString().split(' ');
            this.firstName = words[0] || '';
            this.lastName = words[1] || '';
        }
    });
};