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Formatting: List.Continuous.Dates
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source/List.ContinuousDates.pq

Lines changed: 30 additions & 26 deletions
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List.ContinuousDates = [
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/*
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Generate all dates for a date table
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Source: <https://github.com/ninmonkey/Ninmonkey.PowerQueryLib/blob/master/source/List.ContinuousDates.pq>
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input:
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a list of dates
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*/
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List.ContinuousDates.Type = type function (source as list) as list meta [
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Documentation.Name = "List.ContinuousDates",
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Documentation.LongDescription = "Generate a continuous list of dates from a list of dates, useful for date tables",
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Documentation.Examples = {[
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Description = "Generate a continuous list of dates",
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Code = "List.ContinuousDates( { #date(2021, 1, 1), #date(2021, 1, 3)} )",
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Result = "Table.FromRecords({ [ Date = #date(2021, 1, 1)], [ Date = #date(2021, 1, 2)], [ Date = #date(2021, 1, 3)])"
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]}
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],
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List.ContinuousDates.Impl = (source as list) as list => let
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first = List.Min(source),
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last = List.Max(source),
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days = { Number.From(first)..Number.From(last) },
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let
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baseDates = List.Transform(
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days, each Date.From(_) )
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in
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baseDates,
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return = Value.ReplaceType( List.ContinuousDates.Impl, List.ContinuousDates.Type )
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][return],
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/*
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Generate all dates for a date table
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Source: <https://github.com/ninmonkey/Ninmonkey.PowerQueryLib/blob/master/source/List.ContinuousDates.pq>
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category: data generation? dates
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input:
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a list of dates
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*/
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List.ContinuousDates.Type = type function (source as list) as list meta [
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Documentation.Name = "List.ContinuousDates",
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Documentation.LongDescription = "Generate a continuous list of dates from a list of dates, useful for date tables",
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Documentation.Examples = {[
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Description = "Generate a continuous list of dates",
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Code = "List.ContinuousDates( { #date(2021, 1, 1), #date(2021, 1, 3)} )",
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Result = "Table.FromRecords({ [ Date = #date(2021, 1, 1)], [ Date = #date(2021, 1, 2)], [ Date = #date(2021, 1, 3)])"
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]}
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],
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List.ContinuousDates.Func = (source as list) as list => let
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first = List.Min(source),
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last = List.Max(source),
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days = { Number.From(first)..Number.From(last) },
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baseDates = List.Transform(
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days, each Date.From(_) )
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in
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baseDates
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in Value.ReplaceType(
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List.ContinuousDates.Func, List.ContinuousDates.Type )

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