JSON.stringify an object with Knockout JS variables
Solution 1
Knockout has a built in toJSON function to do exactly this:
var json = ko.toJSON(viewModel);
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.
Solution 2
You can do this by 2 ways :
first:
var json = ko.toJSON(ko.mapping.toJS(viewModel))
Second
var json = JSON.stringify(ko.mapping.toJS(viewModel))
Solution 3
Have you looked at the knockout mapping plugin?
var unmapped = ko.mapping.toJS(viewModel);
Chris Dixon
I'm a Senior Programmer specialising in .NET Core (C#), JavaScript (Vanilla/MVVM) and surrounding technologies. LinkedIn: https://www.linkedin.com/in/chris-dixon-69938829
Updated on July 09, 2022Comments
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Chris Dixon almost 2 years
Current scenario:
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); }; }
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?