JavaScript 和 knockoutjs 此关键字的奇怪行为

Question

我的论文中有3个部分knockoutjs绑定(bind)

var model1= function()
        {
            self = this;
//somemethods here..
}
 var model2= function()
        {
            self = this;
 self.status = null;
            self.id = ko.observable(1);
             self.processingStatus = function ()
            {
                self.status = setInterval(function(){
                    var id = self.userId();//**self conteine link to model3**                                                                        
                }, 1100);
              }
            //somemethods here..

}

 var model3= function()
        {
            self = this;
//somemethods here..
}

  var m1 = new model1();                
ko.applyBindings(m1, document.getElementById("id1"));

        var m2 = new model2();
        ko.applyBindings(m2, document.getElementById("id2"));

        var m3= new modelHistory();
        ko.applyBindings(m3, document.getElementById("id3"));

model2中的processingStatus方法内部，self指针大陆model3的数据。它会发生什么以及如何在每个模型类中拥有不同的自指针？

Answer 1

您忘记了自变量的“var”。

var self = this;