React Chart - argumentAxis.constantLineStyle.label
Specifies the appearance of the labels of those constant lines that belong to the argument axis.
A constant line label displays the value of a constant line.

See Also
horizontalAlignment
Aligns constant line labels in the horizontal direction.
position
Specifies the position of constant line labels on the chart plot.
The component's default behavior is to display constant line labels inside the chart plot. To place the labels outside the chart plot, set position to "outside".
When position is "outside", note the following label alignment restrictions:
- verticalAlignment is always "center"
- horizontalAlignment can only be "left" or "right"