Function columnIndexOfLetter

  • The 0-based column of letters: "A" → 0, "ab" → 27 (case does not matter).

    Parameters

    • letters: string

      column letters

    Returns number

    the column, -1 if invalid or beyond XFD

    Example

    columnIndexOfLetter("XFD");   // 16383

    Since

    1.1.99

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