How to set custom property in custom scale?

[RaSMiY]

I need to read custom property from scale instance at run time. Is it possible? How to implement?

It seems if I set property in chart.options.scales[id] it doesn't exist in options on Scale.init.

[LeeLenaleee]

You can just access it by calling it like so:

chartVariable.options.scales[scaleId][customVariable]

Although if you set a custom property on the scale you already have access to it so you can also just read that again

[RaSMiY]

Hmm.. Maybe I asked incorrect question.
I do the following:

export class CustomScale extends LinearScale {
    customProperty: CustomProperty;
    ...
    init(cfg) {
       super.init(cfg);
       console.log(this.chart.options.scales[this.id]) // Proxy {id: 'customScale1, type: 'customScale''}
       console.log(this.chart.options.scales[this.id].customProperty) // undefined
   }
}
scale.id = 'customScale';
scale.defaults = LinearScale.defaults;

Chart.register(
   ...
   CustomScale
   ...
);

const chart = new Chart(canvasEl.getContext('2d'), {
   ...
   options: {
      ...
      scales: {
         ...
         customScale1: {
            type: 'customScale',
            ...
            customProperty: 'value'
         }
      }
   }
});

I need to read the property somewhere in CustomScale methods, but the only way to do which I found is to use property 'beforeDataLimits' in scale options like this:

{
   type: 'customScale',
   ...
   beforeDataLimits: (scale) => {
        scale.customProperty = 'value';       
   }
}

This way it works.