Update does not work on an computed observable

[mika76]

If you have a computed observable like

self.Chart_Played = ko.computed(function () {
    return {
        labels: [
            "Played",
            "Not Played"
        ],
        datasets: [{
            data: [
                self.PlayedMachines, // <-- 1
                (self.Machines().length - self.PlayedMachines()) || 0 // <-- 2
            ],
            backgroundColor: [
                "#FF6384",
                "#36A2EB"
            ],
            hoverBackgroundColor: [
                "#FF6384",
                "#36A2EB"
            ]
        }]
    };
});

there are a coupe of issues.

• In the data-bind tag you have to use it as data: Chart_Played() and not as data: Chart_Played - it would be nice if the code figured out this was a computed observable and allowed it to be one
• if [1] is written as self.PlayedMachines() it does not see it as a computed observable
• the whole line [2] cannot be done and must be introduced as a separate ko.computed() function and then placed there.

So all in all there are work arounds, but it would be nice if the code worked a little nicer with computed observables 😊

[grofit]

I dont have capacity to add any features on this at the moment, by all means raise a PR for it.