Variable toBuiltInIDConst

Type Declaration

• • (fmtString: NumberFormatRef): string | number | undefined

  • Returns the built-in numeric id for a format code, or the code itself if it is not a built-in. Numeric refs (already ids) pass through unchanged, which keeps stored ids lossless through the xlsx writer.

    Parameters

    • fmtString: NumberFormatRef

    Returns string | number | undefined