Function toLabel

packages/core/src/chart/index.ts:111–114

(value: unknown)

}

function toLabel(value: unknown): string {
  if (value === null || value === undefined || value === '') return '(empty)'
  return String(value)
}

function toNumber(value: unknown, field: string): number {
  const num = typeof value === 'number' ? value : Number(value)