F # 4 E Y E F O R T H E F # 1 . 1 . 1 1 G U Y

P H I L T R E L F O R D

F # E X C H A N G E 2 0 1 6

S K I L L S M A T T E R , L O N D O N

F# 1.1.11 IN 2006 TO F# 4 IN 2016

BABY SEAN (2007) FSHARPCONF – CH9 (2016)

BACK ANOTHER DECADE TO 1995

Programming Languages appearing in

1995:

• PHP

• Java

• JavaScript

• Ruby*

• OCaml**

* Also a codename for VB in 91

** Caml Special Light was released in 1995, OCaml was a year later

ASK ME ANYTHING

T E A C H Y O U R S E L F P R O G R A M M I N G I N T E N Y E A R S

Get interested in programming,

and do so because it is fun.

Talk with other programmers; read

other programs.

Work on projects with other

programmers.

Work on projects after other

programmers.

Learn at least a half

dozen programming languages.

Remember that there is a

"computer" in "computer science".

F # 1 . 1 . 1 1 R CN O W A V A I L A B L E

let ArraySample() =

let numLetters = 26 in

let results = Array.create numLetters 0 in

let data = "The quick brown fox" in

for i = 0 to data.Length - 1 do

let c = data.Chars(i) in

let c = Char.ToUpper(c) in

if c >= 'A' && c <= 'Z' then begin

let i = Char.code c - Char.code 'A' in

results.[i] <- results.[i] + 1

end

done;

printf "done!\n"

Don Syme’s WebLog – May

2016

As reported by the Hub

Father, F# 1.1.11.7 is

available. This is a “release

candidate”, which means we put

it up to see if it meets the

standards of those who

download and install it.

Source: https://blogs.msdn.microsoft.com/dsyme/2006/08/23/lightweight-syntax-option-in-f-1-1-12-3/

B LO G O S P H E R E

H U B F S :T H E P L A C E F O R F #

HubFS was run by the

mysterious optionScalper from

2005 to 2011, implemented an

ASP.Net it boasted over 100,000

members.

Now redirects to Adam

Granicz’s FPish “Online

Community of Functional

Developers” powered by

WebSharper.

R I C K M I N E R I C H ’ SD E V E L O P M E N TW O N D E R L A N D

The web site is no more and the

Wayback Machine and Google

do not have cached pages as

they were disallowed by the

robots.txt.

Baidu had no such issues…

SERGEY TIHON’S F# WEEKLY

F# ADVENT CALENDAR 2015

N U M B E R S

TARGET OVER 2.2 BILLION DEVICES NATIVELY WITH F#

NATIVELY VIA .NET & MONO

• Android

• iOS

• Linux

• Mac

• Windows

• Raspberry Pi

• etc.

AND DON’T FORGET VIA WEB

Everything else with

• Fable

• Freya

• FunScript

• Suave

• WebSharper

• etc.

F# STARTUPS: JET.COM $570M RAISED

F# ARCHITECTURE VISIBLE FROM SPACE

F# USER GROUPS IN UK & EUROPE

F#UNCTIONAL LONDONERS

• Founded Feb 2010

• 1000+ Members

• Meets every 2 weeks

• Topics include

– Machine Learning

– Finance

– Games

– Web

http://meetup.com/fsharplondon

F# MACHINE LEARNING BOOKS…ARE LIKE BUSES

L A N G U A G E

F# VERSIONSF#

2 • Active Patterns

• Units of Measure

• Async & Agents

• Computation

ExpressionsF#

3 • Type Providers

• Linq Queries

• Auto-properties

• Named Union

Fields

F# 4 • Library unification

• Performace

optimizations

• Community-driven

DISCRIMINATED UNIONS:NAMED UNION FIELDS

P L AT F O R M S

PLATFORMS: .NET CORE

RUNTIMES

.Net

Mono

JS

Web

Assembly?

OpenCL

GPU

.Net Core

.NET CORE -> LINUX!! !

PLATFORMS: FABLE

RUNTIMES

.Net

Mono

JS

Web

Assembly?

OpenCL

GPU

.Net Core

F# CODE DIRECT TO JS

T O O L I N G

VISUAL F# POWER TOOLS

Friends don’t let friends use Visual Studio without the Power Tools

IONIDE: XPLAT IN ATOM & VS CODE

TRY WEBSHARPER ONLINE

FUN 3D: FUNSCRIPT

S U M M A R Y

F# 4 FOR F# 1.1.11

• COMMUNITY HAS GROWN!

• HUGE ARRAY OF LEARNING MATERIAL NOW AVAILABLE!

• CUTTING EDGE LANGUAGE FEATURES!

• TARGET BILLIONS OF DEVICES

Q U E S T I O N S