JSON.stringify一个具有Knockout JS变量的对象 [英] JSON.stringify an object with Knockout JS variables

问题描述

当前情况：

function Employee(data) {
var self = this;

// variables
this.Forename = ko.observable(data.Forename);
this.Surname = ko.observable(data.Surname);

this.Save = function () {
    var obj = JSON.stringify(self); // Without ko.observables, this works fine. self() doesn't work obviously.
    console.log(obj);
};
}

我认为我想做的事情非常简单，全部可观察的值，而不经过它们中的每一个，并使用stringify函数创建一个JSON字符串。这很容易做到没有observables，有没有一个简单的方法来做它？

I think what I'm trying to do is pretty straight forward, get all the observable values without going through every single one of them, and creating a JSON string using the stringify function. This is easy to do without observables, is there a simple way to do it with them?

推荐答案

Knockout内置< a href =http://knockoutjs.com/documentation/json-data.html> toJSON 功能就是这样做：

Knockout has a built in toJSON function to do exactly this:

var json = ko.toJSON(viewModel);

ko.toJSON - 这会产生一个表示视图模型数据的JSON字符串。在内部，它只是在视图模型上调用ko.toJS，然后在结果上使用浏览器的本机JSON序列化程序。 注意：为了能够在没有本机JSON序列化程序的旧浏览器（例如，IE 7或更早版本）上工作，您还必须引用json2.js库。

ko.toJSON — this produces a JSON string representing your view model’s data. Internally, it simply calls ko.toJS on your view model, and then uses the browser’s native JSON serializer on the result. Note: for this to work on older browsers that have no native JSON serializer (e.g., IE 7 or earlier), you must also reference the json2.js library.

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