Making properties observable in array with Knockout.js Mapping Plugin

Question

When I call ko.mapping.fromJS(model) it creates a blank array. I am trying to create an observable array with observable properties. The initial model variable object as a string looks like this "[{"Key":"test","Speeches":[{"Text":"test"}]}]". Why is the fromJS method returning an empty array [] ?

RP Niemeyer · Accepted Answer · 2011-09-01 01:34:25Z

2

If your model is in JSON (string representation), then you need to use ko.mapping.fromJSON(model).

Otherwise, it should work fine. I know that console.log on an observableArray in Chrome shows [], so maybe the data is there.

Here is a sample that shows both ways and that the data is valid: http://jsfiddle.net/rniemeyer/PBhG3/

answered Sep 1, 2011 at 1:34

RP Niemeyer

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Mike Flynn Over a year ago

You maybe right then. We went a different route at the moment but I will mark it as correct.

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