javascript - Knockout.js - ObservableArray 不返回值

Question

在 knockout 中，这有效并正确绑定(bind):

self.currentCustomer = ko.observable(new Customer("a","b","c","d","e","f","g","h"));

但是，下面没有。

// Random list of customers
self.customers = ko.observableArray([
    new Customer("a","b","c","d","e","f","g","h")
]);


self.currentCustomer = ko.observable(self.customers[0]);

我不明白为什么这不起作用。这种模式在我的应用程序的其他部分正常工作。

Answer 1

要访问数组，您必须解包它:

self.currentCustomer = ko.observable(self.customers()[0]);