`axis.tickValues` could also return `values`? about d3-axis

[mbostock]

It could compute the tick values, but then you’d have no way of knowing whether the axis is configured to use the scale to compute the ticks, or whether the tick values are explicitly specified through axis.tickValues, and similarly there’d be no way to copy the settings from one axis to another.

There’s no link from continuous.ticks to the source because it’s an interface with multiple implementations. And I didn’t want to duplicate the methods for every scale type…

https://github.com/d3/d3-scale/blob/master/src/linear.js
https://github.com/d3/d3-scale/blob/master/src/log.js

[alexlenail]

@mbostock that's fair. So every time I want ticks from a scale for a given axis, I need to recompute the ticks? There's no method to access the cached ones?

[mbostock]

Correct.