F# Seq

Syntax

Seq.[function]

Example

let mySeq = Seq.ofList [1; 2; 3; 4]
let odds = mySeq |> Seq.filter (fun x -> x % 2 = 1)
let sum = mySeq |> Seq.sum

Output

odds: 1 3 
sum: 10

Explanation

Seq is a module in F# that provides a functional and efficient way to work with sequences, which are collections of values that can be enumerated. Seq functions can be used with any collection type that implements the IEnumerable interface.

In the example above, we create a Seq from a list of integers, filter out the odd numbers, and then calculate the sum of all the integers in the sequence.

Use

Seq provides a powerful set of functions for working with sequences, including filtering, mapping, folding, sorting, and more. Sequences can be generated from any collection type, and the resulting sequences can be used in place of the original collection, allowing for more efficient and functional code.

Important Points

• F# Seq provides a functional and efficient way to work with sequences of values.
• Seq functions can be used with any collection type that implements the IEnumerable interface.
• Seq functions include filtering, mapping, folding, sorting, and more.
• Sequences can be generated from any collection type.
• Sequences can be used in place of the original collection for more efficient and functional code.

Summary

In this page, we learned about F# Seq, its syntax, usage, and important points. With its powerful set of functions, Seq provides a functional and efficient way to work with sequences in F#.