今回はFrom Objects to Functionsの著者のUberto Barbiniさんに登壇いただきます。

せっかくオンラインで実施するので、気になるところや質問などを、チャットなどで書いてもらえると嬉しいです。オフラインではできないことをやりたいので、みなさまわいわいご参加ください！
Twitterに投稿する場合は #jjug をつけて！

ナイトセミナー開催URLにつきましては、イベント開始15分前までに参加者の皆様にメール及びTwitter JJUG公式アカウントでお知らせいたします。

タイムテーブル

時間	内容
20:00～20:05	オープニング
20:05～20:55	From Objects to Functions by Uberto Barbini
20:55～21:00	クロージング

From Objects to Functions

Learning Functional Programming in the field. Taking examples from two chapters of my book "From Objects to Functions" (http://pragprog.com) we will see how using a functional approach changes the error handling and the logging parts of our application.
Using exceptions to recover from errors in our programs goes against the principle of functional programming because it will prevent us from defining the logic composing pure functions since an Exception cannot be a valid return value for a pure function.
In this talk, I'll present some possible techniques to handle errors differently and, arguably, make our code easier to read and maintain.

Uberto Barbini (@ramtop)
Uberto is a Google Developer Expert on Kotlin with more than 20 years of experience designing and building successful software products in (too) many industries. He is very passionate about writing the best code to deliver value to the business, in the shortest time, and not only once but at a regular pace.When not coding, Uberto loves public speaking, mentoring, and writing. He authored a book about Functional Programming in Kotlin (https://pragprog.com/titles/uboop/from-objects-to-functions/)
You can read his blog here: https://medium.com/@ramtop