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F# 101

This is a series of hands-on examples that will teach you the basics of F#.

You should read the script files present in this repository in-order.

Prerequisites

  1. Make sure that you have a F# environment installed. You can install F# on Mac, Linux and Windows.
  2. Recommended for beginners: Install Visual Studio Code and the Ionide plugin for enabling F# development within VS Code.

You should be able to create a new F# script file in your editor, and evaluate it. In VS Code, this means creating a new .fsx file, and evaluating expressions by selecting them and pressing Alt-Enter.

Reading order

  1. 01-Primitives.fsx

    Introduction to primitive types in F#; using let to create immutable variables.

  2. 02-Functions.fsx

    Using let to create functions; calling functions; recursion.

  3. 03-ComplexTypes.fsx

    Introduction to F# types: tuples, records, discriminated unions.

  4. 04-Collections.fsx

    F# collection types: lists, arrays, maps, sets.

  5. 05-PartialApplication.fsx

    Currying & partial applications; pipeline operator in F#; common operations defined in the sequence module.