onrendered - this.api.data.values() error

[DemersM]

there is an error when we try to use this.api.data.values() in the onrendered callback function

https://jsfiddle.net/y09cb1x5/5/

[netil]

@danelkhen, the use of this.api isn't adequate approach accessing private members.
Anyway, there're 2 options to solve this.

function onrendered() {
   // (1)
    console.log(this.api.data.values.call(this.api, "data1"));

   // (2)
   setTimeout(function() {
       console.log(chart.data.values("data1"));
   }, 0);
}

[DemersM]

Thank you for your reply. I understand your point.

Won't it be more easy/logical to pass the chart instance in every callback?

function onrendered(chart) {
    chart.data.values("data1");
}

[netil]

Roughly speaking, there're context inconsistency across all callbackish options. (And is quite complicate change to not break unexpected incompatibility, but at some point this should be arranged)

You can access via this keyword within onrendered callback, which is referring to ChartInternal instance.