Tick/PointLabels: callback vs formatter

[stockiNail]

The ticks and point labels configurations have got a callback property in order to format the tick or point label.
In my opinion, callback is a generic name and not really explain the goal of this property.

Taking DataLabels plugin as example, maybe the property could be renamed in formatter, aligned with the format option for tick as well.

Of course, if this proposal will be accepted, this is a breaking change.

[LeeLenaleee]

I think something along the lines of custom would be better since you can indeed use the callbacks to format your label or tooltip but you can also return custom texts which are totally different.

So them formatter would be too specific in my eyes

[stockiNail]

I think something along the lines of custom would be better since you can indeed use the callbacks to format your label or tooltip but you can also return custom texts which are totally different.

I could agree but to format a value or to return a complete different value is anyway a formatting of value, isn't it?

If you use custom, is (in my opinion) is still not clear which kind of customization you can do. Here you can only set the label of the tick or point labels.

custom was used in previous version in tooltip but it made sense because you could create a tooltip completely from scratch.

[LeeLenaleee]

I could agree but to format a value or to return a complete different value is anyway a formatting of value, isn't it?

yeah but I was also thinking about the tooltip since I think there it would be too generic too then while there are multiple callbacks who normally dont do anything so you create a custom thing instead of formatting a given value

[stockiNail]

yes! I think custom is anyway better than callback. I proposed formatter because it is used in DataLabels to do the same thing.
In Labels plugin, render is used but personally I don't like.