javascript - observableArray 未定义

Question

我在客户端开发环境中工作，必须遵守他们的编码标准。我有以下 JS 和 HTML。我的 observableArray 未定义。我无法让它工作。甚至 console.logs 也打印了正确的值。

请不要担心ko.applyBindings。已处理完毕。

我的 JS 代码:

define(
    ['knockout'],
    function (ko) {
        "use strict";
        return {
            onLoad: function (widget) {
                widget.getDetails= function (prod) {
                    var abc = prod.DetailsNumbers();
                    console.log(abc);
                    var someArray= [];
                    someArray= abc.split(',');
                    //console.log(someArray);
                    var anotherObservableArray = ko.observableArray();

                    for (var i = 0; i < someArray.length; i++) {
                        var temp = {
                            "prodName": ko.observable(someArray[i])
                        };
                        anotherObservableArray.push(temp);
                    }
                    console.log(anotherObservableArray());
                };
            }
        }
    }
);

我的 HTML 代码:

<div id="someId">
    <table>
        <tbody>
            <tr>
                <td>Button Here</td>
                <td><button data-bind="click: getDetails(product())">Click me</button></td> 
            </tr>// this here is working fine
        </tbody>
    </table>
    <ul data-bind="foreach: anotherObservableArray"> // this doesnt work
        <li>
            <span data-bind="text: prodName"> </span>
        </li>
    </ul>
</div>

anotherObservableArray is not defined

Answer 1

您不会在声明的函数范围之外公开 anotherObservableArray。基本上您的代码采用以下格式:

{
  onLoad: function (widget) {
    widget.getDetails = function (prod) {
      var anotherObservableArray = ko.observableArray();
      // push some items into the array
      console.log(anotherObservableArray());
    };
  }
}

您以某种方式需要在函数外部公开 anotherObservableArray 。例如:

{
  onLoad: function (widget) {
    widget.getDetails = function (prod) {
      var anotherObservableArray = ko.observableArray();
      // push some items into the array
      console.log(anotherObservableArray());
      this.anotherObservableArray = anotherObservableArray; // Expose it on the function
    };
  }
}