Class CSVExporter

Protectedoptions

ProtectedapplySampling

• applySampling(data: ExportData): ExportData

  Apply sampling to data based on options

  Parameters

  • data: ExportData

  Returns ExportData

ProtectedcalendarDay

• calendarDay(value: unknown): string

  The calendar day a date-only value stores, as ISO 8601 YYYY-MM-DD, or null when it names none.

  A SQL date arrives as a Date at UTC midnight or as its ISO string, so the day is read from the UTC parts or the leading YYYY-MM-DD of the string — never from local getters, which give the previous day for anyone west of Greenwich.

  A leading YYYY-MM-DD that is not a real day (2026-13-45, 2026-02-30) names none: trusted, it wrote "Invalid Date" or rolled over to another day (2026-03-02). The caller writes the original value instead.

  Parameters

  • value: unknown

  Returns string

ProtectedderiveColumns

• deriveColumns(data: ExportData): ExportColumn[]

  Derive columns from data if not explicitly provided

  Parameters

  • data: ExportData

  Returns ExportColumn[]

ProtectedextractRowValues

• extractRowValues(row: ExportDataRow, columns: ExportColumn[]): unknown[]

  Extract row values in column order

  Parameters

  • row: ExportDataRow
  • columns: ExportColumn[]

  Returns unknown[]

ProtectedformatColumnName

• formatColumnName(name: string): string

  Format a column name for display (e.g., "firstName" -> "First Name")

  Parameters

  • name: string

  Returns string

ProtectedformatValue

• formatValue(value: unknown, column: ExportColumn): unknown

  Format a cell value based on column type

  Parameters

  • value: unknown
  • column: ExportColumn

  Returns unknown

ProtectedgetFullFileName

• getFullFileName(): string

  Generate the full file name with extension

  Returns string