Small program
Combine records, unions and list functions into a report.
What you will be able to do
- Model with a record.
- Map and sum the list.
- Print the result.
In plain English
Combine records, unions and list functions into a report.
- Model with a record.
- Map and sum the list.
- Print the result.
type Lesson = { Title: string; Minutes: int }
let lessons = [ { Title = "HTML"; Minutes = 12 }; { Title = "CSS"; Minutes = 18 } ]
let total = lessons |> List.sumBy (fun l -> l.Minutes)
printfn "Total: %d" totalYour turn
EasyExplain it back
Answer from memory: Which function sums a projected list?
TEXT · starter
Your answer…Check your understanding before moving on.
Knowledge checkQuestion 1
Which function sums a projected list?
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