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02:30 PM
ROSIE THE ROBOT OPERATING SYSTEM IN ERLANG
THEME : CODE BEAM LITE
NATALIA CHECHINA
CONSULTANT DEVELOPER
ERLANG SOLUTIONS
UNITED KINGDOM
LUCA SUCCI
CREATOR OF ROSIE
.
UNITED KINGDOM
Intermediate Session
PLACEZOOM
SCHEDULE 02:30 - 03:15 PM
Case Study
Robots are exciting. Lots of progress in robotics in terms of research, tools,
and state-of-the-art libraries that we see in modern robots became possible due
to Robot Operating System (ROS). It is the most popular open-source robotics
middleware that enables roboticists from both academia and industry to
collaborate and relatively easy get robots up and running. However, ROS is
neither scalable, nor fault-tolerant, and these are areas in which the Erlang
programming language has lots to offer.
In this talk, we'll introduce ROSiE (Robot Operating System integrating Erlang)
that merges togetherness and state-of-the-art of the open-source robotics world
with expertise in scalability and fault-tolerance of Erlang. We'll talk about
our vision, finds, and progress so far
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DIRECT URL:
https://confengine.com/conferences/functional-conf-2022/schedule/rich#session-29756-info
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
04:00 PM
WHAT'S NEW IN GRADUALIZER? GRADUALLY TYPING ERLANG AND ELIXIR
THEME : CODE BEAM LITE
RADEK SZYMCZYSZYN
TECH LEAD
ERLANG SOLUTIONS KRAKÓW
POLAND
Beginner Session
PLACEZOOM
SCHEDULE 04:00 - 04:45 PM
Talk
Gradual typing is a bit like static typing, because it provides error messages
if your code has types and specs - and any errors, obviously. Gradual typing is
also a bit like dynamic typing, because it doesn't require all the functions to
have specs and just agrees when you say: "Trust me, I'm an engineer!"
Gradualizer, introduced at Code Beam Stockholm by Josef Svenningsson, is a
gradual typechecker for Erlang. I'll describe some changes, improvements, and
challenges we faced and managed to overcome in 2021. I'll also show how to type
check not only Erlang, but also Elixir code.
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DIRECT URL:
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
05:00 PM
MNESIA_ROCKSDB 2 - MNESIA BACKEND PLUGIN ON STEROIDS
THEME : CODE BEAM LITE
ULF WIGER
LEAD DEVELOPER
AETERNITY
SWEDEN
Intermediate Session
PLACEZOOM
SCHEDULE 05:00 - 05:45 PM
Talk
The Aeternity Core blockchain system has been using mnesia with the
mnesia_rocksdb backend plugin since it went live in 2017, and now handles a 100
GB database. In this talk, we talk about our experiences and present an
evolution of the mnesia_rocksdb plugin. In the new version, we introduce a new
API, allowing applications to use the fast RocksDb low-level API and its
advanced features, while respecting Mnesia metadata and even indexing support.
Mnesia-level and rocksdb-level access can coexist in the same system, with a bit
of care.
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DIRECT URL:
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
06:30 PM
LIVING THE XKCD 927 DREAM WITH OPENTELEMETRY 1.0
THEME : CODE BEAM LITE
GREG MEFFORD
PRINCIPAL FULL-STACK ENGINEER
STORD
UNITED STATES
Intermediate Session
PLACEZOOM
SCHEDULE 06:30 - 07:15 PM
Talk
Have you ever experienced vendor lock-in from your observability tooling? Don't
you wish you could instrument your code once and send telemetry data to multiple
vendors to see what their platforms have to offer before signing a contract and
investing a lot of engineering time?
The future is now, with OpenTelemetry!
OpenTelemetry has finally reached general availability, with the Erlang and
Elixir library leading the way as one of the first official implementations to
be compliant with this new industry specification. Now is the time to start
thinking about how to get your services instrumented using this exciting new
vendor-neutral instrumentation.
This talk will quickly cover the basics you need to know to get started and send
data to both open-source tooling and vendor platforms, so that you can get the
observability you need, without being locked into a specific vendor's
instrumentation library!
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
07:30 PM
DISTRIBUTED ELIXIR (LESSONS FROM HCA HEALTHCARE’S PROJECT WATERPARK)
THEME : APPLYING FP
BRYAN HUNTER
ENTERPRISE FELLOW
HCA HEALTHCARE
UNITED STATES
Intermediate Session
PLACEZOOM
SCHEDULE 07:30 - 08:15 PM
Keynote
At HCA Healthcare, we built Waterpark– a continuously available, geographically
distributed, high velocity Enterprise Integration Platform. We built it from
scratch in Elixir. Elixir and the ErlangVM are very powerful tools. Need to
model millions of things? No problem. Need processes to self-heal when things
break? No problem. Need to model millions of things that self heal on computers
scattered across a continent? Hmmm… for that you’ve got some work to do, but in
Elixir that work is very doable and fun. In this nuts-and-bolts session, we will
discuss the distributed computing bits that are in-the-box with Elixir and what
is missing. We will cover the missing bits that we built and “why”. Topics
include: hashing functions, distributed process registries, the mailroom
pattern, server topology, leader election, consensus, actor replication and
recovery, and hot code loading.
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
CODE BEAM LITE
THU, MAR 24
TIMEZONE: ASIA/KOLKATA (IST)
14:00
OPENING TALK BY FRANCESCO CESARINI
SCHEDULE 02:00 - 02:20 PM (20 MINS)
14:30
add_circle
ROSIE THE ROBOT OPERATING SYSTEM IN ERLANG
schedule 02:30 - 03:15 PM IST place Zoom people 2 Interested
Intermediate Session
NATALIA CHECHINA
CONSULTANT DEVELOPER
ERLANG SOLUTIONS
UNITED KINGDOM
LUCA SUCCI
CREATOR OF ROSIE
.
UNITED KINGDOM
Case Study
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
15:30
TEA/COFFEE BREAK
SCHEDULE 03:30 - 04:00 PM (30 MINS)
16:00
add_circle
WHAT'S NEW IN GRADUALIZER? GRADUALLY TYPING ERLANG AND ELIXIR
schedule 04:00 - 04:45 PM IST place Zoom people 3 Interested
Beginner Session
RADEK SZYMCZYSZYN
TECH LEAD
ERLANG SOLUTIONS KRAKÓW
POLAND
Talk
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
17:00
add_circle
MNESIA_ROCKSDB 2 - MNESIA BACKEND PLUGIN ON STEROIDS
schedule 05:00 - 05:45 PM IST place Zoom people 1 Interested
Intermediate Session
ULF WIGER
LEAD DEVELOPER
AETERNITY
SWEDEN
Talk
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
18:00
EXPERIENCE REPORT
SCHEDULE 06:00 - 06:20 PM (20 MINS)
18:30
add_circle
LIVING THE XKCD 927 DREAM WITH OPENTELEMETRY 1.0
schedule 06:30 - 07:15 PM IST place Zoom people 2 Interested
Intermediate Session
GREG MEFFORD
PRINCIPAL FULL-STACK ENGINEER
STORD
UNITED STATES
Talk
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
19:30
add_circle
DISTRIBUTED ELIXIR (LESSONS FROM HCA HEALTHCARE’S PROJECT WATERPARK)
schedule 07:30 - 08:15 PM IST place Zoom people 2 Interested
Intermediate Session
BRYAN HUNTER
ENTERPRISE FELLOW
HCA HEALTHCARE
UNITED STATES
Keynote
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
09:00 AM
THE ESSENCE OF FUNCTIONAL PROGRAMMING
THEME : FP BOOTCAMP
RICHARD FELDMAN
HEAD OF TECHNOLOGY
NOREDINK
UNITED STATES
Beginner Session
PLACEZOOM
SCHEDULE 09:00 - 09:45 AM
Keynote
This talk dives into the origins of functional programming, going all the way
back to where the term was first introduced, to see how it evolved over time
into our modern understanding of what FP essentially involves.
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DIRECT URL:
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
11:00 AM
FP IS THE NEW OOP
THEME : APPLYING FP
MICHAEL SNOYMAN
VP, ENGINEERING
FP COMPLETE
ISRAEL
Intermediate Session
PLACEZOOM
SCHEDULE 11:00 - 11:45 AM
Talk
Many of us in the functional programming community believe that FP is a
significant improvement over object oriented programming, arguably the dominant
programming paradigm today. That of course begs the question: how did an
inferior paradigm grab so much mindshare and market share and rise to
prominence? I'm going to tell the story a bit differently, exploring a different
take on the strengths of OOP, and how that affects those of us who advocate for
functional programming.
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DIRECT URL:
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
11:00 AM
NATURE-INSPIRED OPTIMIZATION ALGORITHMS WITH F#
THEME : APPLYING FP
JOHN AZARIAH
PRINCIPAL SDE
MICROSOFT
AUSTRALIA
Intermediate Session
PLACEZOOM
SCHEDULE 11:00 - 11:45 AM
Talk
Quantum Computing is all the rage these days, but, as an emerging technology,
it's difficult to find practical applications right away. One area which allows
us to invest in a quantum future is to use quantum- and nature- inspired
optimization algorithms, which can run on classical computing infrastructure
today and leverage quantum hardware when it is available.
In this talk, I'd like to give a short overview of the state of the art in
quantum computing, and introduce two widely used optimization algorithms made
better in F# with functional principles.
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DIRECT URL:
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
11:00 AM
OCAML PLATFORM IN 2022
THEME : FP BOOTCAMP
SUDHA PARIMALA
SOFTWARE ENGINEER
SEGFAULT SYSTEMS
INDIA
Beginner Session
PLACEZOOM
SCHEDULE 11:00 - 11:45 AM
Demonstration
OCaml - a functional programming language from the ML family, recently
celebrated its 25th year. For a language to be around for that long is an
achievement in itself. Furthermore, people are actively working on adding
exciting features to the language and its ecosystem.
Thanks to efforts from various developers and maintainers, the OCaml developer
platform has come a long way and continues to evolve at a rapid phase. My talk
will cover all the existing tooling that makes a OCaml developer's life easy.
The talk will demonstrate end-to-end state-of-the-art developer tooling, right
from installing a OCaml compiler, using VSCode and vscode-ocaml-platform which
provides IDE like features, to publishing a library and its documentation.
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DIRECT URL:
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
12:00 PM
FUNCTIONAL PROGRAMMING PATTERNS FOR DESIGNING MODULAR ABSTRACTIONS
THEME : APPLYING FP
DEBASISH GHOSH
PRINCIPAL SOFTWARE ENGINEER
LEADIQ
INDIA
Intermediate Session
PLACEZOOM
SCHEDULE 12:00 - 12:45 PM
Talk
The biggest power of functional programming comes from the ability to treat
functions as first class objects and the power to compose them incrementally to
evolve larger functions out of smaller ones. Designing such functions as
referentially transparent enables us to treat functions in programming just like
functions in mathematics - side-effects are carefully abstracted through
“effects” and delayed till the algebra of our program gets submitted to the run
time system.
In this talk I will discuss a few idioms and patterns on how using the power of
composition can lead to development of modular abstractions. Instead of
committing to an implementation prematurely we can define abstractions that
focus on “what” it does deferring the “how” part to later stages of the
lifecycle. In functional programming terminology we call the “what” part the
algebra of our abstraction, and the “how” part the interpreter. Decoupling the
two is one of the basic recommendations in functional programming.
I will use Haskell and Scala for the examples. I will discuss common
functionalities that we use everyday in programming our domain models like
validations, database interactions, managing exceptions, talking to external
services etc. and show how to use the power of typed functional programming to
make them more compositional.
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
12:00 PM
BEYOND: CROSSING THE PLATFORM BOUNDARIES WITH F# AND FABLE
THEME : APPLYING FP
ALFONSO GARCIA-CARO
SOFTWARE DEVELOPER
FREELANCER
JAPAN
Beginner Session
PLACEZOOM
SCHEDULE 12:00 - 12:45 PM
Talk
Fable is an F# to JS compiler that has been successfully used in production by
thousands of developers for more than 5 years. Thanks to steady improvements and
a great community and ecosystem, including the SAFE stack, the Elmish
architecture and the Feliz React API, it has become one of the best options to
write robust, succinct and performant web applications nowadays.
Fable was originally designed to integrate F# with the JS ecosystem instead of
trying it to hide it. With this same philosophy, the Fable team is working now
to target other languages beyond .NET and JS. There are already working
prototypes to compile F# into Php, Python and Rust code, and we expect to
release a beta in the upcoming months. Let's see how Fable 4 will further
empower F# and functional programmers!
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DIRECT URL:
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
12:00 PM
SNIPPETS FROM AN ALGORITHMIC TRADING SYSTEM IN KOTLIN
THEME : APPLYING FP
DHANANJAY NENE
PROGRAMMER ON A BREAK, FINANCIAL MARKETS TRADER
DHANANJAY NENE
INDIA
Intermediate Session
PLACEZOOM
SCHEDULE 12:00 - 12:45 PM
Talk
This talk will introduce the audience to algorithmic trading, the design of an
algorithmic trading system, and various snippets written in Kotlin that fulfil
specific tasks that collectively contribute towards a full trading system. The
rough sketch will be as follows
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DIRECT URL:
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
02:00 PM
FAMILIARITY OR GUARANTEES? FUNCTIONAL PROGRAMMING FOR THE FRONT-END
THEME : APPLYING FP
LUCA MUGNAINI
SOFTWARE ENGINEER
RAKUTEN
JAPAN
Beginner Session
PLACEZOOM
SCHEDULE 02:00 - 02:20 PM
Experience Report
In the front-end world, we finally can take an important decision: Familiarity
or Guarantees?
Do we keep using frameworks that are familiar to JavaScript (bringing with them
all JS idiosyncrasies) or do we embrace a world of guarantees where functions
are pure, data is immutable, types are correct, and runtime exceptions don’t
exist?
In Rakuten, we went the way of guarantees three years ago, choosing Elm.
In this talk, I am going to explain what are the benefits of Elm in the
front-end, and what was our experience.
I will showcase examples, best practices, things that we liked, and things that
we didn't like.
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DIRECT URL:
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
02:00 PM
N WAYS TO FIZZBUZZ IN CLOJURE
THEME : FP BOOTCAMP
ADITYA ATHALYE
CHIEF EVAL-APPLY OFFICER
EVALAPPLY.ORG
INDIA
Beginner Session
PLACEZOOM
SCHEDULE 02:00 - 02:20 PM
Demonstration
FizzBuzz is back in fashion! Everybody is doing it again (and again, and again).
So I figured why should I miss out on the action?
Why not use (and abuse) as many features as possible, of my favourite FP
language Clojure, to FizzBuzz in as many ways as I can possibly muster?
Why not up the ante by leaking the four other ways I discovered so far? And why
not make it harder on myself by committing to spectacular public failure if I
can't find more? Why. Not?!
So here we are...
(def range-of-fizzbuzzees (range 1 101))
(def fizbuzz map)
(= (fizzbuzz canonical-fizbuzzer
range-of-fizzbuzees)
(fizzbuzz or-fizbuzzer
range-of-fizzbuzees)
(fizzbuzz juxt-fizbuzzer
range-of-fizzbuzees)
(fizzbuzz lookup-fizbuzzer
range-of-fizzbuzees)
(fizzbuzz (fn [f n] (f n))
cyclical-fizbuzzer
range-of-fizzbuzees))
The chase has begun! Who knows what will happen?
WITNESS ME.
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DIRECT URL:
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
02:00 PM
EXPERIENCE REPORT
THEME :
Session
PLACEZOOM
SCHEDULE 02:00 - 02:20 PM
Event
content_paste View Details
DIRECT URL:
https://confengine.com/conferences/functional-conf-2022/schedule/rich#session-29740-info
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
02:30 PM
DO WE REALLY DO FP IN JAVA?
THEME : APPLYING FP
BEN EVANS
SENIOR PRINCIPAL ENGINEER
RED HAT
SPAIN
Beginner Session
PLACEZOOM
SCHEDULE 02:30 - 03:15 PM
Talk
Many Java developers believe that FP arrived in Java 8, with the addition of
first-class lambda expressions and the Streams API. But is this really true? In
this talk, Ben Evans will talk about what FP really is, examine whether Java can
really be said to be FP or not - and consider whether things have improved with
more recent versions, as well as some possibilities of how we could have done
things differently (in another world).
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DIRECT URL:
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
02:30 PM
RETARGETING F# FOR THE WEB: FROM JS TO WEBASSEMBLY
THEME : APPLYING FP
ADAM GRANICZ
CEO
INTELLIFACTORY
HUNGARY
Advanced Session
PLACEZOOM
SCHEDULE 02:30 - 03:15 PM
Talk
WebSharper is an open-source full-stack, functional-first web framework for F#
and C# that runs on top of ASP.NET Core. It features F# and C# transpilers to
JavaScript, extensible bindings to JavaScript libraries, and various server and
client-side abstractions (MVU, reactive HTML, etc.) for type-safe web
development. In this session, I’ll walk through some of the basics that make
WebSharper an immensely productive tool to develop microservices, SPAs, and
full-stack client-server applications in your favourite .NET language, and cover
how you can combine and/or migrate some of your WebSharper apps to run in
WebAssembly with Bolero, a set of F# web abstractions for Blazor.
Functional-first .NET web development has never been easier!
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DIRECT URL:
https://confengine.com/conferences/functional-conf-2022/schedule/rich#session-29711-info
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
02:30 PM
TYPESCRIPT'S TYPE SYSTEM - FROM SOLVING PUZZLES TO PROVING FACTS OF PROGRAM
THEME : APPLYING FP
DAMODHARAN JAYACHANDRAN
MEMBER LEADERSHIP STAFF
ZOHO
INDIA
Beginner Session
PLACEZOOM
SCHEDULE 02:30 - 03:15 PM
Demonstration
Typescript has gained a lot of traction with majority of javascript frameworks
adopting it and gaining the power of static types.
Given the Typescript types are a language themselves and they are Turing
complete, lets put our type flavoured favourite language of the web to test -
for fun & profit.
With the advent of fp-ts, typescript's boundary to statically type FP algebras
like Functor, Monoid & Monad are just a import away!.
But why restrict ourselves when we can achieve more with almost "Dependent
types" in typescript - Like solving logical puzzles to proving properties of the
program (like type level regex check, indexed list & matrices etc) for
correctness.
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DIRECT URL:
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
04:00 PM
WRITING GREAT TESTS WITH HASKELL
THEME : APPLYING FP
EVIE CIOBANU
SENIOR HASKELL ENGINEER
HASURA
ROMANIA
Intermediate Session
PLACEZOOM
SCHEDULE 04:00 - 04:45 PM
Talk
Program correctness has always been an important topic in computer science, and
is only showing growth as software becomes more complex. Statically typed
functional programming provides compiler guidance and guarantees. Advanced
typing features can provide additional ways to restrict and formally prove
properties within the constraints of the original program.
This has even (half-seriously) popularized remarks about how it's enough to get
a program to compile to be sure it is correct. While there is some degree of
truth to this (Haskell programs can escape some classes of bugs by merely
enabling all warnings and having a reasonable coding standard in place), this is
obviously not true for all but most trivial software.
Formal verification can help whenever that is not possible, but it is still
impractical for all but small and critical systems. We still rely on writing
automated unit, property, and integration tests to ensure our programs behave in
the way we expect them.
At Hasura, we run these tests automatically in continuous integration (CI)
services, and they often take up the majority of CI time. We dedicate a
significant amount of time writing and maintaining these tests.
What is a good test? How do we write good tests? How do we organize them? What's
important to consider when writing tests?
I describe common patterns and recommended style guides for writing tests that
optimize for ease of reading and understanding rather than writing or modifying.
It should be apparent what it is that we're testing, what are the assumptions of
the test, what is being set up or arranged before the test, as well as what it
is we are testing and what is the expected response. We should strive to
maximize the domain information and minimize accidental complexity, such as
particularities of the testing framework or programming language we're using.
In a language as expressive as Haskell, we should be able to write unit and
integration tests that are understandable and modifiable by domain experts (such
as power users or product owners), not only Haskell developers.
This can generally be achieved by focusing on getting the domain-specific data
together in a record, thus making the test-relevant information easily readable
and understandable.
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
04:00 PM
TYPE CLASSES IN SCALA 3
THEME : APPLYING FP
AYUSH MITTAL
SOFTWARE ENGINEER
ING NETHERLANDS
NETHERLANDS
Intermediate Session
PLACEZOOM
SCHEDULE 04:00 - 04:45 PM
Talk
Type classes are a powerful tool in functional programming to enable ad-hoc
polymorphism without using object orientated programming based constructs like
sub typing. In this talk we look at how to create type classes using Scala 3
constructs such as ‘Givens’ and ‘Extension’ methods.
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
04:00 PM
WHY APL IS A LANGUAGE WORTH KNOWING
THEME : APPLYING FP
RODRIGO GIRÃO SERRÃO
CONSULTANT
DYALOG
PORTUGAL
Beginner Session
PLACEZOOM
SCHEDULE 04:00 - 04:45 PM
Talk
“A language that doesn't affect the way you think about programming, is not
worth knowing.” ― Alan Perlis, in “Epigrams in Programming”
Following Alan Perlis's words, this talk will show why APL is a language worth
knowing. In other words, I will devote the talk to showcasing characteristics of
APL that are likely to, on the one hand, influence the way you use other
programming languages, and, on the other hand, understand concepts of computer
science.
By listening to this talk, I hope to convince you that learning a language that
is radically different from all the other languages you know isn't harmful.
Learning a language that is radically different from all other languages you
know won't scatter your knowledge or spread your brain too thin. In fact,
learning a language that is radically different from all other languages you
know will cement your programming knowledge, helping you build bridges between
topics you didn't even know were connected.
To drive my point home, we take a closer look at two characteristics of APL: the
fact that Boolean values are represented by the integers 0 and 1, and the fact
that APL is an array-oriented language. In studying these two things, we draw
connections to the traditional if statement and to list comprehensions,
deepening our understanding of those.
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
05:00 PM
PROPERTY-BASED TESTING - LET YOUR TESTING LIBRARY WORK FOR YOU
THEME : APPLYING FP
MAGDA STOŻEK
SOFTWARE DEVELOPER
SOFTWAREMILL
POLAND
Beginner Session
PLACEZOOM
SCHEDULE 05:00 - 05:45 PM
Talk
Don't ask what you can do for your testing library, ask what it can do for you!
So what can it do? It turns out that much more than displaying a nice green and
red report. What if we make the library generate the test data? And while we're
at it, maybe it could also think of the edge cases for which our code is wrong?
Oh, and when it finds them, it should simplify them a bit before returning to
us, so that we can quickly identify the root cause of the problem. And repeat
that a thousand times, just to be sure. Sounds good? That's exactly what
property-based testing has to offer. I'll show how to get started with this kind
of testing, using jqwik (https://jqwik.net/) as an example. But isn't it all too
good to be true, surely there's some fine print? Of course there is. I'll cover
that as well.
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
05:00 PM
MULTIPLAYER ONLINE GAME IN CLOJURE: ATTACK OF THE CLONES
THEME : APPLYING FP
MEY BEISARON
SOFTWARE ENGINEER, BACKEND DEVELOPER
FORTER
ISRAEL
Beginner Session
PLACEZOOM
SCHEDULE 05:00 - 05:45 PM
Demonstration
When I say "Multiplayer online game development in Clojure" 2 questions probably
pop right up : WHY? HOW?
Why? because you can do it in under 100 lines of code, and it is pure FUN.
How? Well that's exactly what we'll talk about in this session.
I will present a simple MOG written in Clojure and go through each line of code
- so you'll understand how you can do that yourself, even if you've never
written a single line of Clojure before.
Whether you’re a real Clojurian at heart or just interested in hearing a talk
about Clojure from a sworn star wars fan - this talk is for you :)
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
05:00 PM
INTERPRET YOUR MONADS! - CONCRETE MONADS VS MONAD CLASSES
THEME : APPLYING FP
AUKE BOOIJ
HASKELL ENGINEER
HASURA
SWITZERLAND
Intermediate Session
PLACEZOOM
SCHEDULE 05:00 - 05:45 PM
Talk
Concrete monads or monad classes? I’ll tell you why it often makes sense to jump
around between these options, and where this comes from.
Monads are the central notion to encode a program with effects in Haskell.
Nowadays, we often combine several monad transformers to create the desired
effect stack, relying on mmorph to juggle effects as required. But in fact,
monad transformers and monad morphisms are just as old as monads in functional
programming, an idea first published in 1989.
We can still benefit from that old work. The core of this talk is to discuss
monads which are initial objects in the sense of category theory. Practically,
this means that such monads can be interpreted in a class of other monads.
Perhaps the most well-known example of such initial monads is Either e, which
can be interpreted in any monad that instantiates MonadError e, through the use
of liftEither.
This general principle of monad interpretation is exactly what allows us to jump
around between concrete monads and monad classes. Monad interpretation can
sometimes give a free performance boost, and can be used to easily write Haskell
Arrows code without Arrow syntax.
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
06:00 PM
LESSONS LEARNED FROM 15 YEARS OF SCALA IN THE WILD
THEME : APPLYING FP
DEAN WAMPLER
DIRECTOR OF ENGINEERING
IBM RESEARCH
UNITED STATES
Advanced Session
PLACEZOOM
SCHEDULE 06:00 - 06:45 PM
Keynote
Scala 3 was introduced last year. It introduced significant changes to the
language, many of which were motivated by the lessons learned from the past 15
or so years of actual use in many open-source and commercial applications.
I'll explore these lessons and how Scala 3 addresses them. Many revolve around
the pros and cons of implicits. Also, changes to the type system make it more
"regular", robust, and expressive. Finally, the new, optional, and controversial
"Python-like" syntax promotes even more brevity. It also acknowledges how
influential and pervasive Python has become across our industry.
But there are many practical areas where future work is required, many of which
are larger than the scope of Scala itself. We still live in "dependency hell".
We still use too many obsolete idioms that hide accidental complexity, rather
than forcing us to fix it. What should we do about these issues?
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
07:00 PM
CLOJURE THROUGH THE LENS OF MUSIC
THEME : APPLYING FP
DAVE YARWOOD
SENIOR SOFTWARE ENGINEER
KEVEL
UNITED STATES
Intermediate Session
PLACEZOOM
SCHEDULE 07:00 - 07:45 PM
Talk
You may be familiar with what map, filter, and reduce do. But have you ever
heard how these functions sound?
The Alda language is centered around the idea that music can be represented as
data. alda-clj is a Clojure library that maps Clojure data structures to the
music theory concepts in the Alda language, including notes and chords. The
library serves as an interface that takes Clojure code as input and produces
music as output.
In addition to the basic functions that you will find in the standard libraries
of most functional programming languages, Clojure's standard library offers a
wealth of interesting and useful functions that facilitate working with
immutable data. In this talk, we will explore the Clojure standard library by
applying interesting functions like cycle, mapcat, partition and reductions to
transform data that represents music. Using the alda-clj library, we will not
only see the result of each function call, we will also hear the results and
observe how they can help us understand how each function works.
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
07:00 PM
COSY, EVOLVED FROM APL VIA K IN OPEN FORTH
THEME : APPLYING FP
BOB ARMSTRONG
SOLE PROPRIETOR
COHERENT SYSTEMS (COSY)
UNITED STATES
Intermediate Session
PLACEZOOM
SCHEDULE 07:00 - 07:45 PM
Talk
CoSy is a new paradigm in computing language and interface . CoSy implements the
abstractions of APL , evolved from the notation of applied mathematics ,
winnowed thru K , in open Forth . Forth is uniquely minimal and open to the
underlying hardware . In fact a Forth processor takes up just a small amount of
space on an FPGA . All in an computational notebook , log , environment for
dealing with the everyday business of life , written itself in CoSy .
While at the two poles of the computing language spectrum , APL and Forth share
a number of attributes :
* Both are interactive and interpretive at the user level .
* Both are oriented for the creation of words , vocabulary , which work
together in sentences .
* Both are functional : words are generally structured take the result of
previous words and return results to be used by following words .
* Both tend to be extremely succinct . Definitions are delimited by just a
single character .
* K | name : { def ... }
* Forth | : name def ... ;
Forth's goal is the minimal vocabulary necessary to create a dictionary capable
of extending itself .
It is as simple as language can be :
* a ` word is any non blank string of characters .
Space is the prime delimiter .
* The syntax is noun noun verb aka: RPN
CoSy adds plurals to Forth .
* all nouns are lists . At the Forth level they have a 3 cell header
`( Type Count refCount )`
Lists are allocated . When ` refCount returns to 0 they are freed .
* Indexing is modulo -- like counting on your thumb & fingers : 0 1 2 3 4 0
CoSy's next step is attracting the fresh heads and resources to clean it up in a
Forth available across the various current chips and operating systems , and to
interface thru browsers and the Web
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
07:05 PM
CASE STUDY
THEME :
Session
PLACEZOOM
SCHEDULE 07:05 - 07:50 PM
Event
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
APPLYING FP
FRI, MAR 25
09:00
add_circle
THE ESSENCE OF FUNCTIONAL PROGRAMMING
schedule 09:00 - 09:45 AM IST place Zoom people 2 Interested
Beginner Session
RICHARD FELDMAN
HEAD OF TECHNOLOGY
NOREDINK
UNITED STATES
Keynote
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
10:00
WELCOME AND CONFERENCE OVERVIEW
SCHEDULE 10:00 - 10:20 AM (20 MINS)
10:30
COFFEE/TEA BREAK
SCHEDULE 10:30 - 11:00 AM (30 MINS)
11:00
add_circle
FP IS THE NEW OOP
schedule 11:00 - 11:45 AM IST place Zoom people 1 Interested
Intermediate Session
MICHAEL SNOYMAN
VP, ENGINEERING
FP COMPLETE
ISRAEL
Talk
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
add_circle
NATURE-INSPIRED OPTIMIZATION ALGORITHMS WITH F#
schedule 11:00 - 11:45 AM IST place Zoom
Intermediate Session
JOHN AZARIAH
PRINCIPAL SDE
MICROSOFT
AUSTRALIA
Talk
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
add_circle
OCAML PLATFORM IN 2022
schedule 11:00 - 11:45 AM IST place Zoom people 1 Interested
Beginner Session
SUDHA PARIMALA
SOFTWARE ENGINEER
SEGFAULT SYSTEMS
INDIA
Demonstration
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
12:00
add_circle
FUNCTIONAL PROGRAMMING PATTERNS FOR DESIGNING MODULAR ABSTRACTIONS
schedule 12:00 - 12:45 PM IST place Zoom people 1 Interested
Intermediate Session
DEBASISH GHOSH
PRINCIPAL SOFTWARE ENGINEER
LEADIQ
INDIA
Talk
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
add_circle
BEYOND: CROSSING THE PLATFORM BOUNDARIES WITH F# AND FABLE
schedule 12:00 - 12:45 PM IST place Zoom
Beginner Session
ALFONSO GARCIA-CARO
SOFTWARE DEVELOPER
FREELANCER
JAPAN
Talk
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
add_circle
SNIPPETS FROM AN ALGORITHMIC TRADING SYSTEM IN KOTLIN
schedule 12:00 - 12:45 PM IST place Zoom
Intermediate Session
DHANANJAY NENE
PROGRAMMER ON A BREAK, FINANCIAL MARKETS TRADER
DHANANJAY NENE
INDIA
Talk
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
13:00
LUNCH
SCHEDULE 01:00 - 02:00 PM (60 MINS)
14:00
add_circle
FAMILIARITY OR GUARANTEES? FUNCTIONAL PROGRAMMING FOR THE FRONT-END
schedule 02:00 - 02:20 PM IST place Zoom
Beginner Session
LUCA MUGNAINI
SOFTWARE ENGINEER
RAKUTEN
JAPAN
Experience Report
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
add_circle
N WAYS TO FIZZBUZZ IN CLOJURE
schedule 02:00 - 02:20 PM IST place Zoom people 1 Interested
Beginner Session
ADITYA ATHALYE
CHIEF EVAL-APPLY OFFICER
EVALAPPLY.ORG
INDIA
Demonstration
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
add_circle
EXPERIENCE REPORT
schedule 02:00 - 02:20 PM IST place Zoom
Session
Event
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
14:30
add_circle
DO WE REALLY DO FP IN JAVA?
schedule 02:30 - 03:15 PM IST place Zoom people 1 Interested
Beginner Session
BEN EVANS
SENIOR PRINCIPAL ENGINEER
RED HAT
SPAIN
Talk
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
add_circle
RETARGETING F# FOR THE WEB: FROM JS TO WEBASSEMBLY
schedule 02:30 - 03:15 PM IST place Zoom
Advanced Session
ADAM GRANICZ
CEO
INTELLIFACTORY
HUNGARY
Talk
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
add_circle
TYPESCRIPT'S TYPE SYSTEM - FROM SOLVING PUZZLES TO PROVING FACTS OF PROGRAM
schedule 02:30 - 03:15 PM IST place Zoom people 1 Interested
Beginner Session
DAMODHARAN JAYACHANDRAN
MEMBER LEADERSHIP STAFF
ZOHO
INDIA
Demonstration
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
15:30
COFFEE/TEA BREAK
SCHEDULE 03:30 - 04:00 PM (30 MINS)
16:00
add_circle
WRITING GREAT TESTS WITH HASKELL
schedule 04:00 - 04:45 PM IST place Zoom people 1 Interested
Intermediate Session
EVIE CIOBANU
SENIOR HASKELL ENGINEER
HASURA
ROMANIA
Talk
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
add_circle
TYPE CLASSES IN SCALA 3
schedule 04:00 - 04:45 PM IST place Zoom people 1 Interested
Intermediate Session
AYUSH MITTAL
SOFTWARE ENGINEER
ING NETHERLANDS
NETHERLANDS
Talk
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
add_circle
WHY APL IS A LANGUAGE WORTH KNOWING
schedule 04:00 - 04:45 PM IST place Zoom people 1 Interested
Beginner Session
RODRIGO GIRÃO SERRÃO
CONSULTANT
DYALOG
PORTUGAL
Talk
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
17:00
add_circle
PROPERTY-BASED TESTING - LET YOUR TESTING LIBRARY WORK FOR YOU
schedule 05:00 - 05:45 PM IST place Zoom people 2 Interested
Beginner Session
MAGDA STOŻEK
SOFTWARE DEVELOPER
SOFTWAREMILL
POLAND
Talk
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
add_circle
MULTIPLAYER ONLINE GAME IN CLOJURE: ATTACK OF THE CLONES
schedule 05:00 - 05:45 PM IST place Zoom
Beginner Session
MEY BEISARON
SOFTWARE ENGINEER, BACKEND DEVELOPER
FORTER
ISRAEL
Demonstration
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
add_circle
INTERPRET YOUR MONADS! - CONCRETE MONADS VS MONAD CLASSES
schedule 05:00 - 05:45 PM IST place Zoom
Intermediate Session
AUKE BOOIJ
HASKELL ENGINEER
HASURA
SWITZERLAND
Talk
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
18:00
add_circle
LESSONS LEARNED FROM 15 YEARS OF SCALA IN THE WILD
schedule 06:00 - 06:45 PM IST place Zoom people 2 Interested
Advanced Session
DEAN WAMPLER
DIRECTOR OF ENGINEERING
IBM RESEARCH
UNITED STATES
Keynote
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
19:00
add_circle
CLOJURE THROUGH THE LENS OF MUSIC
schedule 07:00 - 07:45 PM IST place Zoom people 1 Interested
Intermediate Session
DAVE YARWOOD
SENIOR SOFTWARE ENGINEER
KEVEL
UNITED STATES
Talk
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
add_circle
COSY, EVOLVED FROM APL VIA K IN OPEN FORTH
schedule 07:00 - 07:45 PM IST place Zoom people 1 Interested
Intermediate Session
BOB ARMSTRONG
SOLE PROPRIETOR
COHERENT SYSTEMS (COSY)
UNITED STATES
Talk
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
19:05
add_circle
CASE STUDY
schedule 07:05 - 07:50 PM IST place Zoom people 2 Interested
Session
Event
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
09:00 AM
TEACHING OPTICS THROUGH CONSPIRACY THEORIES
THEME : MASTERING FP
BARTOSZ MILEWSKI
MATH EVANGELIST
PROGRAMMING CAFE
UNITED STATES
Advanced Session
PLACEZOOM
SCHEDULE 09:00 - 09:45 AM
Keynote
With polymorphic functions you can often tell how they are implemented by
looking at their outputs. The more polymorphic the function, the more you can
tell about its internal workings. Lenses, as well as more general optics, have
convenient polymorphic implementations in terms of functors and profunctors. But
under layers of abstractions they are hiding some simple truths. We are going to
get to the bottom of this conspiracy.
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
10:00 AM
CONCURRENT STATE MACHINES WITH CATS EFFECT
THEME : APPLYING FP
ADAM ROSIEN
PRINCIPAL
INNER PRODUCT LLC
UNITED STATES
Intermediate Session
PLACEZOOM
SCHEDULE 10:00 - 10:45 AM
Talk
Concurrent coordination is a notoriously difficult problem: how do we make the
behavior of a computation depend on another, concurrently running one? Or more
than one? We’ll show one technique: the concurrent state machine, and build many
examples using the powerful Cats Effect library.
For example, how can we share state between effects when that state might be
concurrently updated? Or how can we ensure one effect only proceeds once work is
complete in another? We’ll discuss the first issue by using the Ref data type
for sharing mutable state. We’ll then show how the Deferred data type can
provide concurrent effect serialization without blocking any actual threads.
Finally we’ll model even more complex behavior by composing these two
concurrency primitives together to form a concurrent state machine.
Some concurrent coordination behaviors we can construct using this method are:
mutual exclusion (mutexes, semaphores, etc.)
latches (closed until a certain number of events happen, then always open)
and many others.
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
10:00 AM
5 YEARS OF TRYING TO GET PEOPLE TO USE AN FP LANGUAGE
THEME : APPLYING FP
PHILLIP CARTER
SENIOR PRODUCT MANAGER
HONEYCOMB
UNITED STATES
Beginner Session
PLACEZOOM
SCHEDULE 10:00 - 10:45 AM
Case Study
At Microsoft, Phillip worked on the F# language and tools from 2016 to 2021. In
this talk, Phillip will recount the various strategies he and his team used to
try and increase adoption of F#, and by extension, FP as a whole. Over this
period of time, the F# language evolved and grew its user base substantially.
Lots of experiments to increase adoption were tried, such as pivoting to data
science, and most failed ... but some succeeded, hinting at some paths to
adoption for FP that don't just involve a more mainstream language appropriating
FP features. If you're interested in storytelling, learning about fun ways
things failed, and curious about some things that succeeded in increasing
adoption, check out this talk!
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
11:30 AM
IMPLEMENTING EVENT-DRIVEN MICROSERVICES ARCHITECTURE IN FUNCTIONAL LANGUAGE
THEME : APPLYING FP
NIKHIL BARTHWAL
SOFTWARE ENGINEER
& STARTUP MENTOR
UNITED STATES
Intermediate Session
PLACEZOOM
SCHEDULE 11:30 AM - 12:15 PM
Tutorial
Web services are typically stateless entities, that need to operate at scale at
large. Functional paradigm can be used to model these web services work and
offer several benefits like scalability, productivity, and correctness. This
talk describes how to implement Event-Driven Microservices in functional
programming languages with examples in F#.
Immutability allows infinite scalability as it eliminates the need to worry
about a mutex, a lock, or a race. As functional code is much more terse compared
to object-oriented code, it provides productivity benefits. Its strict typing
makes writing correct code easy as mismatches of types are caught at compile
time.
The objective of the talk is to show how to create a scalable & highly
distributed web service in F#, and demonstrate how various characteristics of
functional paradigm captures the behavior of such services architecture very
naturally.
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
11:30 AM
TYPE-HOLE DEVELOPMENT
THEME : MASTERING FP
TONY MORRIS
SOFTWARE ENGINEER
SIMPLE MACHINES
AUSTRALIA
Intermediate Session
PLACEZOOM
SCHEDULE 11:30 AM - 12:15 PM
Tutorial
In this presentation, we will see coding problems, similar to those which can be
found at https://github.com/system-f/fp-course/ using the Haskell programming
language.
Solving problems such as these can be daunting for many reasons and especially
for beginners. A common stumbling block to these types of problems is coming up
against unfamiliar problem-solving methods. For example, everyone knows how to
add up the numbers in a list with a for-loop. This is a well-understood method
of solving this particular coding problem.
And then you hear the functional programmers, "just use the types" and "well you
just do the only obvious thing to solve it." While true, this is not
particularly helpful to someone who is not already fluent with this approach to
problem-solving.
You may have heard of using type-holes to solve coding problems. We'll be using
type-holes, and a few other techniques, with the Haskell programming language to
live-solve coding problems. We will solve both trivial and not-so-trivial
problems while "thinking out aloud." Feel free to follow along! You'll just need
Glasgow Haskell Compiler (GHC) and a text editor installed.
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
12:30 PM
NAMES ARE OVERRATED
THEME : APPLYING FP
JED WESLEY-SMITH
DIRECTOR OF ENGINEERING
SIMPLE MACHINES
AUSTRALIA
Beginner Session
PLACEZOOM
SCHEDULE 12:30 - 12:50 PM
Talk
Some people even say names don't matter. While it is widely held that good
naming is one of the most important aspects of programming, is there such a
thing as an objectively good name?
As part of a discussion of the philosophy of programming, we'll look at what are
the real aims of naming things well, and what considerations we should have in
mind when discussing them. We'll have a look at alternatives and what they bring
that names do not.
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
12:30 PM
HUH? TO AHA! - A REFACTORING STORY
THEME : APPLYING FP
GOPAL S AKSHINTALA
SENIOR MEMBER OF TECHNICAL STAFF
SALESFORCE
INDIA
Beginner Session
PLACEZOOM
SCHEDULE 12:30 - 12:50 PM
Demonstration
_As a Dev, I need to Refactor, to make codebase Refactorable_. Refactorability
as defined by Martin Fowler is, "Ability to alter internal structure without
changing its external behavior". This applies to each atomic component of an
app. Let's achieve our dev story through a unique, yet most effective Method,
**Component Isolation**.
Let's huddle over persuasive arguments against _Obstacles_ that hinder our goal
causing entanglements among components, and _Metrics_ that measure our success.
Let's refactor a real-world app to and witness how Isolated components make-up
long-lasting structures.
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DIRECT URL:
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
02:00 PM
MINITT: INGREDIENTS FOR A DEPENDENTLY TYPED LANGUAGE
THEME : MASTERING FP
SIDDHARTH BHAT
STUDENT
IIIT HYDERABAD
INDIA
Advanced Session
PLACEZOOM
SCHEDULE 02:00 - 02:45 PM
Tutorial
I explain the ingredients necessary to implement a minimal dependently typed
language (https://github.com/bollu/minitt). I'll explain the ideas of
normalization by evaluation on untyped lambda calculus, bidirectional type
checking on simply typed lambda calculus, and then scale these up to a full,
minimal dependently typed language, dubbed "mini-TT". At the end of the talk,
you'll be fully equipped to implement a dependently typed language, and follow
along other material such as "The little typer" for a deeper dive.
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
02:00 PM
TYPE REIFICATION WITH PURESCRIPT
THEME : MASTERING FP
ANUPAM JAIN
UI ARCHITECT
ARISTA NETWORKS
INDIA
Advanced Session
PLACEZOOM
SCHEDULE 02:00 - 02:45 PM
Talk
PureScript is a Haskell-like language that compiles to JavaScript. If you like
Haskell, you will find yourself completely at home with PureScript. However
there are a few interesting typelevel things from Haskell that are not provided
by the PureScript compiler. The Type reification machinery is one of them.
In this talk, we'll understand the concept of type reification and its
implementation using the Typeable typeclass. Essentially, using Typeable we can
take a runtime value and get a value level representation of its type called a
Typeref, this process is called type reification, which we can then compare with
other known typerefs. We'll discuss indexed and unindexed typerefs and some real
world problems that can be solved by this sort of type reification.
A significant part of the talk will involve details of how Typeable is
implemented in Haskell, and how it can be approximated in PureScript even
without compiler support (available as a library
https://github.com/ajnsit/purescript-typeable/). We'll also discuss some
alternatives approaches and their pros/cons.
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
03:00 PM
CASE STUDY
THEME :
Session
PLACEZOOM
SCHEDULE 03:00 - 03:45 PM
Event
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
03:00 PM
CASE STUDY
THEME :
Session
PLACEZOOM
SCHEDULE 03:00 - 03:45 PM
Event
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
04:30 PM
EXTENDING RAILWAY ORIENTED PROGRAMMING IN ELM TO MAKE COMPLEX USER FLOWS SIMPLE
THEME : APPLYING FP
GRAHAME DIXON
SIDE PROJECT DEVELOPER
GRAHAME DIXON
CANADA
Intermediate Session
PLACEZOOM
SCHEDULE 04:30 - 04:50 PM
Talk
What do you do with a multi-step function with different kinds of user input
that may be required at different steps?
I'm using Elm to build a game client for Codex, a complex strategy board game by
David Sirlin with lots of interesting side effects in the game design. The pure
functional programming of Elm is very powerful for managing these side effects,
but how should I handle when there are many different kinds of user input
required to complete the behaviour of a single feature?
There’s a “railway oriented programming” metaphor to understand how to handle
multiple-steps of errors. I’ll extend this metaphor – with stations – to show
how to make what looks like a complex functional problem into a simple pattern
of abstraction.
Some familiarity with functional programming idioms is recommended, though the
examples themselves are easy to follow. Attendees will walk away seeing
functional programming applied in a fresh way, perhaps opening their mind to
alternative perspectives to approach the complicated problems in their projects.
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
04:30 PM
FAST AND CURIOUS: BENCHMARKING (MULTICORE) OCAML
THEME : APPLYING FP
SHAKTHI KANNAN
SENIOR SOFTWARE ENGINEER
SEGFAULT SYSTEMS
INDIA
Beginner Session
PLACEZOOM
SCHEDULE 04:30 - 04:50 PM
Experience Report
An oft overlooked aspect of programming language development process is
benchmarking. While popular CI/CD tools such as Azure pipelines, Gitlab CI,
Circle CI, Drone.io and Github Actions are regularly used for continuous testing
and deployment, there is a dearth of such tools for continuous benchmarking.
This is because benchmarking well is challenging due to the care needed to
choose appropriate benchmarks, the complexity of modern OSes and hardware that
makes it hard to obtain reproducible results, and a powerful dashboard needed to
surface resultant metrics in a useful manner that can be explored interactively
by the developer.
For benchmarking the compiler of the OCaml [1] programming language, we have
developed Sandmark [2]. Sandmark is a (a) suite of well chosen benchmarks aimed
at exercising different performance axes including CPU, memory and IO (b) a tool
to run the benchmarks, building the compiler and its dependencies under varying
configuration settings and (c) a dashboard [3] to interactively explore the
results of the benchmark runs. Sandmark was originally developed for supporting
the Multicore OCaml [4] project, which aims to add native support for
concurrency and parallelism to OCaml, and has undergone significant improvements
since the initial release [5].
We have learnt several useful lessons in building a continuous benchmarking
infrastructure that we would like to share in this talk, which may benefit
developers who work on projects where performance is critical. In this talk, I
will describe the Sandmark tool, illustrate the quirks of modern OSes and
hardware and how we overcame them, highlighting useful takeaways for setting up
continuous benchmarking for your own projects.
References:
[1] OCaml: https://ocaml.org/
[2] Sandmark: https://github.com/ocaml-bench/sandmark
[3] sandmark-nightly: https://github.com/ocaml-bench/sandmark-nightly
[4] Multicore OCaml: https://github.com/ocaml-multicore/ocaml-multicore/
[5] Tom Kelly. Benchmarking the OCaml compiler: our experience, OCaml Workshop
2019,
https://icfp19.sigplan.org/details/ocaml-2019-papers/3/Benchmarking-the-OCaml-compiler-our-experience
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
05:00 PM
THE Z3 SMT SOLVER AND FUNCTIONAL PROGRAMMING
THEME : MASTERING FP
ALLISTER BEHARRY
OPEN-SOURCE DEVELOPER
FREELANCER
TRINIDAD AND TOBAGO
Advanced Session
PLACEZOOM
SCHEDULE 05:00 - 05:45 PM
Demonstration
Satisfiability modulo theories (SMT) solvers are extremely powerful tools that
are indispensable in a number of applications of functional programming from
mathematical analysis and optimization to computer security to program
verification. SMT solvers allow you to determine if certain logical and
mathematical formulas are satisfiable or (just as importantly) unsatisfiable in
the context of theories like real arithmetic or set theory, and can provide
definitive answers to commonly encountered programming problems involving logic,
arithmetic, equations, and constraints.
Z3 is one of the most popular SMT solvers available today with APIs available
for many different programming languages. Although Z3 is most commonly used from
Python, functional languages like F# provide powerful metaprogramming facilities
that make it very easy to translate F# code and expressions to Z3 expressions
without the need for custom types or operators.
This presentation describes how the Z3 solver can be used from F# via quotations
to quickly and easily solve common programming problems from Boolean formula
satisfiability to arithmetic expression equality to linear programming to
verifying fragments of source code.
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
05:00 PM
STUMBLING OVER STATE
THEME : APPLYING FP
DANIEL STEINBERG
AUTHOR
DIMSUMTHINKING.COM
UNITED STATES
Beginner Session
PLACEZOOM
SCHEDULE 05:00 - 05:45 PM
Tutorial
We each follow similar paths into the forest of functional programming. Some
languages are better suited than others but we all hit a wall on our way to
mastering monads. In this talk, I'll use examples from the Swift programming
language to trace our understanding from types that feel like containers such
as Array and Optional to types that definitely don’t such as Reader and State
Monads. We’ll learn to perform many magic tricks along the way.
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
06:00 PM
DSLS, ARCHITECTURE, AND STRUCTURAL DESIGN IN APL, 3 WAYS.
THEME : APPLYING FP
AARON W HSU
COMPUTER RESEARCHER
DYALOG LTD.
UNITED STATES
Intermediate Session
PLACEZOOM
SCHEDULE 06:00 - 06:45 PM
Talk
Beginning functional and APL programmers often express confusion about how to
structure large software projects or larger pieces of code. Both APL and FP have
a tendency to highlight their low-level features and de-emphasize system
architecture patterns. This can leave programmers with a strong sense of how to
write a set of small functions, but with less confidence or skill in designing,
recognizing, and implementing more cohesive implicit system architectures that
hold these lower level functions together. System architectures serve as a
method for constraining the overall design of a system to give direction and
focus to lower level implementation requirements. Especially in APL, where
system architecture is often best implemented implicitly, it behooves the
programmer to understand the ramifications of architecture and to implement them
in their own systems. This talk unpacks a number of these "architecture level"
questions within the framework of the APL programming language by exploring the
same topic through 3 different architectural approaches, each of which has a
very distinct flavor, presentation, and impact on the resulting source code.
Particular attention is paid to the question of domain-specific languages, their
design, and how they can interact with APL as tools for architectural
exploration and guidance in APL source trees.
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
06:00 PM
FS2.CHUNK
THEME : APPLYING FP
MICHAEL PILQUIST
DISTINGUISHED ENGINEER
COMCAST
UNITED STATES
Beginner Session
PLACEZOOM
SCHEDULE 06:00 - 06:45 PM
Talk
The Chunk data structure powers the fs2 (Functional Streams for Scala) streaming
library. In this talk, we’ll look at the design of Chunk and in particular, how
design constraints guided its evolution.
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
07:00 PM
NAVIGATING THE LOOP IN WATER, ON LAND AND IN PROGRAMMING MODELS
THEME : MASTERING FP
BRUCE TATE
FOUNDER
GROXIO
UNITED STATES
FRANCESCO CESARINI
FOUNDER & TECHNICAL DIRECTOR
ERLANG SOLUTIONS
UNITED KINGDOM
Intermediate Session
PLACEZOOM
SCHEDULE 07:00 - 07:45 PM
Keynote
Loops are among the most critical programming constructs. These features shape
core ideas about programming in the Erlang ecosystem; from how languages work to
how programming features interact with other code and the outside world. How
systems scale and are resilient. They are also metaphors for the way we think,
build things, and grow. In Erlang and Elixir, loops define servers that form
reliable, fault tolerant and scalable services. This keynote will explore Elixir
and Erlang's approach to concurrency with a nautical adventure called the Great
Loop.
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THEATERS SLIDES
VIDEO_LIBRARY VIDEO
MASTERING FP
SAT, MAR 26
09:00
add_circle
TEACHING OPTICS THROUGH CONSPIRACY THEORIES
schedule 09:00 - 09:45 AM IST place Zoom people 2 Interested
Advanced Session
BARTOSZ MILEWSKI
MATH EVANGELIST
PROGRAMMING CAFE
UNITED STATES
Keynote
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
10:00
add_circle
CONCURRENT STATE MACHINES WITH CATS EFFECT
schedule 10:00 - 10:45 AM IST place Zoom people 1 Interested
Intermediate Session
ADAM ROSIEN
PRINCIPAL
INNER PRODUCT LLC
UNITED STATES
Talk
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
add_circle
5 YEARS OF TRYING TO GET PEOPLE TO USE AN FP LANGUAGE
schedule 10:00 - 10:45 AM IST place Zoom
Beginner Session
PHILLIP CARTER
SENIOR PRODUCT MANAGER
HONEYCOMB
UNITED STATES
Case Study
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
11:00
COFFEE/TEA BREAK
SCHEDULE 11:00 - 11:30 AM (30 MINS)
11:30
add_circle
IMPLEMENTING EVENT-DRIVEN MICROSERVICES ARCHITECTURE IN FUNCTIONAL LANGUAGE
schedule 11:30 AM - 12:15 PM IST place Zoom people 1 Interested
Intermediate Session
NIKHIL BARTHWAL
SOFTWARE ENGINEER
& STARTUP MENTOR
UNITED STATES
Tutorial
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
add_circle
TYPE-HOLE DEVELOPMENT
schedule 11:30 AM - 12:15 PM IST place Zoom
Intermediate Session
TONY MORRIS
SOFTWARE ENGINEER
SIMPLE MACHINES
AUSTRALIA
Tutorial
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
12:30
add_circle
NAMES ARE OVERRATED
schedule 12:30 - 12:50 PM IST place Zoom people 1 Interested
Beginner Session
JED WESLEY-SMITH
DIRECTOR OF ENGINEERING
SIMPLE MACHINES
AUSTRALIA
Talk
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
add_circle
HUH? TO AHA! - A REFACTORING STORY
schedule 12:30 - 12:50 PM IST place Zoom
Beginner Session
GOPAL S AKSHINTALA
SENIOR MEMBER OF TECHNICAL STAFF
SALESFORCE
INDIA
Demonstration
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
13:00
LUNCH
SCHEDULE 01:00 - 02:00 PM (60 MINS)
14:00
add_circle
MINITT: INGREDIENTS FOR A DEPENDENTLY TYPED LANGUAGE
schedule 02:00 - 02:45 PM IST place Zoom people 2 Interested
Advanced Session
SIDDHARTH BHAT
STUDENT
IIIT HYDERABAD
INDIA
Tutorial
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
add_circle
TYPE REIFICATION WITH PURESCRIPT
schedule 02:00 - 02:45 PM IST place Zoom
Advanced Session
ANUPAM JAIN
UI ARCHITECT
ARISTA NETWORKS
INDIA
Talk
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
15:00
add_circle
CASE STUDY
schedule 03:00 - 03:45 PM IST place Zoom
Session
Event
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
add_circle
CASE STUDY
schedule 03:00 - 03:45 PM IST place Zoom
Session
Event
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
16:00
COFFEE/TEA BREAK
SCHEDULE 04:00 - 04:30 PM (30 MINS)
16:30
add_circle
EXTENDING RAILWAY ORIENTED PROGRAMMING IN ELM TO MAKE COMPLEX USER FLOWS SIMPLE
schedule 04:30 - 04:50 PM IST place Zoom
Intermediate Session
GRAHAME DIXON
SIDE PROJECT DEVELOPER
GRAHAME DIXON
CANADA
Talk
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
add_circle
FAST AND CURIOUS: BENCHMARKING (MULTICORE) OCAML
schedule 04:30 - 04:50 PM IST place Zoom people 2 Interested
Beginner Session
SHAKTHI KANNAN
SENIOR SOFTWARE ENGINEER
SEGFAULT SYSTEMS
INDIA
Experience Report
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
17:00
add_circle
THE Z3 SMT SOLVER AND FUNCTIONAL PROGRAMMING
schedule 05:00 - 05:45 PM IST place Zoom people 2 Interested
Advanced Session
ALLISTER BEHARRY
OPEN-SOURCE DEVELOPER
FREELANCER
TRINIDAD AND TOBAGO
Demonstration
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
add_circle
STUMBLING OVER STATE
schedule 05:00 - 05:45 PM IST place Zoom
Beginner Session
DANIEL STEINBERG
AUTHOR
DIMSUMTHINKING.COM
UNITED STATES
Tutorial
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
18:00
add_circle
DSLS, ARCHITECTURE, AND STRUCTURAL DESIGN IN APL, 3 WAYS.
schedule 06:00 - 06:45 PM IST place Zoom people 2 Interested
Intermediate Session
AARON W HSU
COMPUTER RESEARCHER
DYALOG LTD.
UNITED STATES
Talk
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
add_circle
FS2.CHUNK
schedule 06:00 - 06:45 PM IST place Zoom
Beginner Session
MICHAEL PILQUIST
DISTINGUISHED ENGINEER
COMCAST
UNITED STATES
Talk
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
19:00
add_circle
NAVIGATING THE LOOP IN WATER, ON LAND AND IN PROGRAMMING MODELS
schedule 07:00 - 07:45 PM IST place Zoom people 1 Interested
Intermediate Session
BRUCE TATE
FOUNDER
GROXIO
UNITED STATES
FRANCESCO CESARINI
FOUNDER & TECHNICAL DIRECTOR
ERLANG SOLUTIONS
UNITED KINGDOM
Keynote
THEATERS SLIDES
VIDEO_LIBRARY VIDEO
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