normalizedLabels function

List<String> normalizedLabels(
  1. List<String> labels,
  2. int count
)

Pads or truncates labels to exactly count entries, so a mismatched label array can never drive a different number of columns than the data. Missing labels become empty strings; extra labels are dropped.

Implementation

List<String> normalizedLabels(List<String> labels, int count) {
  if (count <= 0) return const [];
  if (labels.length == count) return labels;
  return [for (var i = 0; i < count; i++) i < labels.length ? labels[i] : ''];
}