javascript - 创建的 observableArray 始终为空

Question

我想创建一个 observableArray。下面的代码打印“6 : 0”和“3 : 0”，即 observableArrays 是空的。

我已经在 Firefox 5 和 Chrome 11.0.696.68 中对此进行了测试。

我做错了什么？

var myStringArray = new Array( "Bungle", "Bear", "George", "Hippo", "Zippy", "Unknown" );

var myObjectArray = new Array(
  { name: "Bungle", type: "Bear" },
  { name: "George", type: "Hippo" },
  { name: "Zippy", type: "Unknown" }
);

var viewStringModel = ko.observableArray( myStringArray );
var viewObjectModel = ko.observableArray( myObjectArray );

console.log(myStringArray.length + " : " + viewStringModel.length);
console.log(myObjectArray.length + " : " + viewObjectModel.length);

Answer 1

改变:

 console.log(myStringArray.length + " : " + viewStringModel.length);
 console.log(myObjectArray.length + " : " + viewObjectModel.length);

到

 console.log(myStringArray.length + " : " + viewStringModel().length);
 console.log(myObjectArray.length + " : " + viewObjectModel().length);