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feat: allow empty datetime cells #151

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feat: allow empty datetime cells #151

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2 changes: 2 additions & 0 deletions example.exs
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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,8 @@ sheet1 = Sheet.with_name("First")
|> Sheet.set_cell("A4", 1_448_882_362, yyyymmdd: true)
# datetime: true ouputs date and time, yyyymmdd limits the output to just the date
|> Sheet.set_cell("A5", 1_448_882_362, yyyymm: true)
# Date formatting can also be applied without setting the cell content
|> Sheet.set_cell("A6", "", datetime: true)
# make some room in the first column, otherwise the date will only show up as ###
|> Sheet.set_col_width("A", 18.0)
# Cell borders
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4 changes: 4 additions & 0 deletions lib/elixlsx/util.ex
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Expand Up @@ -231,6 +231,10 @@ defmodule Elixlsx.Util do
{:formula, value}
end

@spec to_excel_datetime(binary() | nil) :: binary()
def to_excel_datetime(nil), do: ""
def to_excel_datetime(""), do: ""

@doc ~S"""
Replace_all(input, [{search, replace}]).

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