chart "x" expects one column id (a string) a...

Warnings reference › chart:*:x:array

Identifier

chart:*:x:array

Raised by

Charts

Since

1.55.0

What happened

x was an array on a type that does not read one. The hierarchical types (pie, donut, sunburst, treemap) read an array there as their levels top down, so for them it is not a mistake; a cartesian type has no such reading: the array reaches the grid's column lookup, which takes one id, so nothing resolves and the chart draws empty. The diagnostic is raised per chart and before the binding, so it precedes whatever the binding then makes of it.

The fix

Give x one column id. For a hierarchy, use a hierarchical type and name the levels in the array - x: ['region', 'product'] - or group the grid and let the type read the grouping.

The smallest fix

createChart({ grid, container, type: 'sunburst', x: ['region', 'product'], y: 'charge' });

Reference

Covered in full at the API reference.