Function colToLetter

  • Converts a column number to a column letter (e.g. 1 => 'A', 27 => 'AA').

    Parameters

    • col: number

      The column number to convert. Must be a positive integer.

    • zeroIndexed: boolean = false

      Optional. Whether the column number is zero-indexed. Defaults to false.

    Returns string

    The column letter corresponding to the column number.

    Throws

    If col is not an integer.

    Throws

    If col is less than 1.

    Example

    colToLetter(1);;
    //=> 'A'
    colToLetter(27);;
    //=> 'AA'
    colToLetter(1, true);;
    //=> 'B'

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