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我试图使用映射插件,使儿童对象的属性可观察。我有以下几点:对象未定义与Knockout数据映射插件
// setData defined here
var mapping = {
create: function(options) {
//customize at the root level.
var innerModel = ko.mapping.fromJS(options.data);
innerModel.cardCount = ko.computed(function() {
debugger;
return this.cards().length; // cards not defined - "this" is Window for some reason
});
innerModel.deleteCard = function (card) {
// Pending UI
// call API here
// On success, complete
this.cards.remove(card);
}.bind(this);
innerModel.addCard = function() {
//debugger;
// Pending UI
// Call API here
// On success, complete
this.cards.push(dummyCard);
//this.cardToAdd("");
}.bind(this);
return innerModel;
}
};
var SetViewModel = ko.mapping.fromJS(setData, mapping);
ko.applyBindings(SetViewModel);
当我在Chrome调试器中运行,我得到“对象[对象全局]有没有方法卡”。卡应是一个可观察的数组。我究竟做错了什么?
感谢本,帮助很大。 – JakeP 2013-03-24 03:49:55