Knockout JS中的validateObservable - undefined不是一个函数

Question

美好的一天，

我正在尝试验证一个非常庞大的表单，并且基本上重写了我的所有viewModel代码，以便可以验证它。问题是ko.validatedObservable（）由于某种原因似乎不存在。我使用了this site中的代码，老实说，我无法看到代码中的问题。这是一个示例：

var someNameSpace= {};

    someNameSpace.bindData = function () {
        someNameSpace.viewModel =
        someNameSpace.initViewModel("123456", "username1", "address1", "address2", "city");

        ko.applyBindings(this.viewModel);
    }

someNameSpace.initViewModel = function (partnerId, username, address1, address2, city) {
    console.log(ko);
    var someViewModel = ko.validatedObservable({ //<----FAILS HERE
        partnerId: ko.observable(partnerId).extend({ required: "This field is required", number: true }),
        username: ko.observable(username).extend({ required: "This field is required" }),
        address1: ko.observable(address1).extend({ required: "This field is required" }),
        address2: ko.observable(address2).extend({ required: "This field is required" }),
        city: ko.observable(city).extend({ required: "This field is required" }),
    });

    var validationOptions = { insertMessages: true, decorateElement: true };
    ko.validation.init(validationOptions);

    return someViewModel ;
}

$(document).ready(function () {
    someNamespace.bindData();
});

在该网站上，它声称使用ko.validatedObservable来检查用户是否正确输入了字段。我仍然是淘汰赛的新手 - 我该怎么办？

Answer 1

您需要包含对'knockout.validation.js'库的引用。

<强> knockout.validation.js

https://rawgit.com/ericmbarnard/Knockout-Validation/master/Src/knockout.validation.js

GitHub参考

https://github.com/Knockout-Contrib/Knockout-Validation