Question

var ViewModel = function () {
    var self = this;

    self.defaultValues = {
        Id: ko.observable(16),
        name: ko.observable("SUkhi"),        
    }; 
};

var model = new ViewModel();

ko.applyBindings(model);

如何通过调用函数来设置DB的默认值16和'Sukhi'。

Answer 1

根据您的需要，有几种方法可以做到这一点。

示例1

var ViewModel = function () {
    var self = this;
    self.Id = ko.observable(16);
    self.name: ko.observable("SUkhi")
};

var model = new ViewModel();
ko.applyBindings(model);

// this will create models with the default values

示例2（我最喜欢的）

 var ViewModel = function (ctor) {
    var self = this;
    var default: {
      id = 16
      name: "SUkhi"
    }
    self.Id = ko.observable();
    self.name: ko.observable()

    /// if using pure JS
    if(!!ctor){ 
        for(var i in ctor){
           if(ctor.hasOwnProperty("i") && self.hasOwnProperty("i"){
               if(ko.isSubscribable(self[i])) { // check if it is observable
                   self[i](ctor[i])
               }
               else {
                   self[i] = ctor[i];
               }
           }
        }
    }
    // end pure JS

    /// if using jquery
    $.extend(self, ctor);
    // end jquery
};

var model = new ViewModel(); // or
var model = new ViewModel({ Id: 5, Name: "Whateva"})
ko.applyBindings(model);

从记忆中写出来，但它全都在那里

如何在淘汰赛中通过DB设置默认值

1 个答案: