我有以下代码:
var HD = function() { };
HD.Car = (function() {
var _date = "09/07/2010";
return {
Make: undefined,
Model: undefined,
showMakeAndModel: function() {
document.write(this.Make + " " +
this.Model +
" (data correct as of " + _date + ")");
}
};
})();
var bert = new HD.Car();
bert.Make = "Ford";
bert.Model = "Capri";
window.onload = bert.showMakeAndModel();
并出现以下错误:
HD.Car is not a constructor
我想做的就是测试(学习)带有闭包的“单例模式”(对于私有(private)成员),所以不是一个“真实”的例子,但我正在读的书表明这是这样做的方法它。
所以有点困惑 - 任何帮助将不胜感激.. 罗布
最佳答案
HD.Car 类定义中有一些不正确的 ()()。这个固定示例的工作原理:
var HD = function() { };
HD.Car = function() {
var _date = "09/07/2010";
return {
Make: undefined,
Model: undefined,
showMakeAndModel: function() {
document.write(this.Make + " " +
this.Model +
" (data correct as of " + _date + ")");
}
};
};
var bert = new HD.Car();
bert.Make = "Ford";
bert.Model = "Capri";
window.onload = bert.showMakeAndModel();
关于javascript - 面向对象的 JavaScript 帮助,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/3213909/