Summary of Functional Programming for Pragmatists • Richard Feldman • GOTO 2021

00:00:00 - 00:40:00

In this talk, Richard Feldman discusses how functional programming can be useful for pragmatic programmers. He explains how it can reduce the cognitive load of debugging, and how it can be used to improve systems level programming. He also discusses the importance of ecosystems for functional programming, emphasizing that they provide a lot of benefits that go beyond just performance.

• 00:00:00 In this talk, Richard Feldman discusses the scope of functional programming, focusing on its advantages over imperative programming. He also discusses the performance implications of functional programming, and the ecosystem implications of its widespread use.
• 00:05:00 Functional programming languages encourage the use of the functional style, which can improve performance. However, this style has some drawbacks, such as the difficulty of memoization. Peer functions are semantically memoizable, meaning that the only difference between them and a lookup table is runtime behavior.
• 00:10:00 In this video, Richard Feldman discusses how functional programming can help to improve performance. He notes that one common optimization is precomputing functions so that they are executed only once. He also mentions that functional programming can be parallelized, which can improve performance.
• 00:15:00 In this talk, Richard Feldman discusses the benefits and drawbacks of programming in a functional style, and talks about the common issue of flaky tests. He describes how to identify and fix these issues.
• 00:20:00 Functional programming can help reduce flaky tests, by minimizing side effects and ensuring that mutations don't affect the code's functionality. Additionally, Rust has mutation annotations which can help prevent mistakes when rearranging code.
• 00:25:00 Functional programming is a programming paradigm that emphasizes the reduction of code to its most essential parts. In this video, Richard Feldman discusses how functional programming can be helpful for pragmatists, and how global mutable variables can introduce implicit dependencies. He also explains how debugging can be difficult when functions have side effects.
• 00:30:00 Functional programming has several benefits for pragmatic programmers, such as reduced debugging time and less reliance on implicit dependencies. However, there are also drawbacks, such as the need to keep functions pure and explicit dependencies.
• 00:35:00 Richard Feldman discusses some of the benefits of functional programming, focusing on the decreased cognitive load it can provide. He also talks about how functional programming can be used for pragmatic, measurable tasks. Finally, he discusses the importance of ecosystems for functional programming, emphasizing that they provide a lot of benefits that go beyond just performance.
• 00:40:00 Richard Feldman discusses the benefits of functional programming for pragmatists, and how it can be used to improve systems level programming. He also credits Russ Olsen with helping him to learn and appreciate functional programming.