Contents Why Use F#? Installing F# Hello, F# The Let Expression The For Keyword The Pipeline F# Can Do Objects, Too Asynchronous F# Fitting in with F# A recent entry into the Microsoft® .NET Framework family, F# provides type safety, performance, and the ability to work like a scripting language, all as part of the .NET environment. This functional language was created by Don Syme of Microsoft Res
![実践的なパターン: テストの容易性を高める設計](https://cdn-ak-scissors.b.st-hatena.com/image/square/d6e4cb632c7025e9f5e05fd314fbf6dcd6144e8d/height=288;version=1;width=512/https%3A%2F%2Flearn.microsoft.com%2Fen-us%2Fmedia%2Fopen-graph-image.png)