Benefits of F#

The Visual F# programming language has a variety of technical benefits that can reduce development costs, reduce time-to-market and improve quality. This post enumerates some of these benefits in the context of different application domains.
Asynchronous servers:

• Asynchronous workflows for the asynchronous IO.
• MailboxProcessor for the thread-safe message passing.
• Algebraic datatypes for server state and message catalogue.
• Pattern matching and tail recursion for the state machines.

Metaprogramming (e.g. parsing):

• Parser generators like fslex and fsyacc.
• Parser combinators like FParsec.
• Active patterns for elegant hand-rolled parsers.
• Algebraic datatypes to represent parse trees.
• Pattern matching to manipulate trees, e.g. apply optimization stages.
• Reflection for run-time generation of fast code.

Technical computing:

• Higher-order functions for elegant and fast algorithmic code.
• Algebraic datatypes and pattern matching for symbolic manipulation.
• Interoperability for wealth of .NET libraries.
• Interactivity using F# interactive.
• Computation expressions for massaging data.
• Units of measure for improved correctness.

GUI applications:

• Model as asynchronous message passing between user interface code and application logic code.
• Higher-order functions let you define user interfaces declaratively.

Logic programming:

• Persistent collections for easy backtracking.
• Tail calls for reliability.
• Automatic generalization for easy generic programming.

Testing:

• Run unit tests interactively.
• BDD means writing an interpreter.
• Good scripting language for writing test harnesses and visualizing results.

Performance:

• inline for cost-free higher-order abstraction.
• Tail calls for fast state machines.
• Purely functional data structures for low latency.
• Metaprogramming for generation of optimized code.