Use this link and code JAVAJAB to get 20% off your registration for FluentConf 2013! Panel Zachary Kessin (twitter github Mostly Erlang Podcast) Jamison Dance (twitter github blog) Merrick Christensen (twitter github) Charles Max Wood (twitter github Teach Me To Code Rails Ramp Up) Discussion 00:55 - Zach Kessin Introduction Programming HTML5 Applications Building Web Applications with Erlang Product Structure Mostly Erlang Podcast 03:01 - Functional Programming Haskell LISP Scheme Erlang Underscore.js chain 06:44 - Monad q Maybe monad 11:33 - Functional Languages vs JavaScript No side effects 18:09 - Why Functional Programming? 037 JSJ Promises with Dominic Denicola and Kris Kowal Higher order functions Ext JS 24:35 - Tail_call Recursion cdr car 044 JSJ Book Club: Effective JavaScript with David Herman 32:54 - Programming Languages Seven Languages in Seven Weeks: A Pragmatic Guide to Learning Programming Languages (Pragmatic Programmers) by Bruce Tate 33:38 - Functional Programming Libraries valentine Maybe.coffee q 36:13 - What do you miss in JavaScript? Pattern Matching Picks Vi Hart on Normalcy of Pi (Jamison) Sport Balls Replaced With Cats (Jamison) JavaScript Allongé by Reginald Braithwaite (Merrick) BonsaiJS (Merrick) Wringing out Water on the ISS - for Science! (Chuck) RequireJS (Chuck) Mostly Erlang (Zach) Boston PD (Zach) Iron Dome (Zach) Next Week Building Accessible Websites on a Podcast with Brian Hogan Transcript [Hosting and bandwidth provided by the Blue Box Group. Check them out at Bluebox.net.] [This episode is sponsored by Component One, makers of Wijmo. If you need stunning UI elements or awesome graphs and charts, then go to Wijmo.com and check them out.] CHUCK:  Hey everybody, and welcome to Episode 57 of the JavaScript Jabber Show. This week on our panel, we have Jamison Dance. JAMISON:  Hello, friends. CHUCK:  Merrick Christensen. MERRICK:  Hi. CHUCK:  I’m Charles Max Wood from Devchat.tv and this week, we have a special guest and that’s Zach Kessin. ZACH:  Hey everybody. CHUCK:  Did I say your name right, Zach? ZACH:  Yep, you got it right. CHUCK:  Alright. This week, we’re going to be talking about functional programming in JavaScript. You want to give us a little bit of a background on you, so that you can kind of explain, I don’t know, who you are and your expertise here? ZACH:  Oh, okay. So yeah, I’m Zach Kessin. I’ve been a software developer for close to 20 years, on the web, close to 20 years now. My first web app in PHP version -- oh, not PHP, in Perl version 4 with mSQL, because MySQL didn’t exist yet. That was, like, 1994. And let’s see, I’ve been doing web applications ever since. Worked in Boston area, in London and then in Israel for about 10 years now. I’m also the author of ‘Programming HTML5 Applications’ and ‘Building Web Applications with Erlang’, both published by O’Reilly. And my interests include functional programming, code generation and concurrency in Erlang. So, well, that’s a different show. That’s sort of my background. And I work at a small Tel Aviv startup called Product Structure that we build [inaudible] components and workflows that will be self-optimizing on your website. So, that’s what we’re doing. We’re launching it soon. CHUCK:  Cool. MERRICK:  Very cool. CHUCK:  You just launched your own podcast, didn’t you? ZACH:  Yeah. I just launched my own podcast called ‘Mostly Erlang’. It’s going to cover Erlang and occasionally other functional languages like Haskell and OCML. We had our first, we recorded our first episode last week. And the first episode is called ‘Building Skynet’. And the second episode will be on the Webmachine framework, which is an HTTP framework, backend framework though, to do semantically correct Webmachine.

Panel Juha Paananen (twitter github blog) Joe Fiorini (twitter github blog) AJ O’Neal (twitter github blog) Jamison Dance (twitter github blog) Joe Eames (twitter github blog) Merrick Christensen (twitter github) Charles Max Wood (twitter github Teach Me To Code Rails Ramp Up) Discussion 01:20 - Joe Fiorini Introduction Interaction Developer at Designing Interactive in Cleveland, OH 01:42 - Juha Paananen Introduction Software Developer at Reaktor in Helsinki, Finland 02:30 - Functional Reactive Programming (FRP) vs Functional Programming 057 JSJ Functional Programming with Zach Kessin 04:25 - Declarative Programming 05:55 - Map and Filter 07:05 - bacon.js Flapjax 09:10 - Mapping and filtering event streams 10:40 - Asynchronicity and Promises 14:28 - Using FRP ReactiveCocoa Complex UIs TodoMVC with Bacon.js, Backbone.js and Transparency.js by pyykiss 20:02 - Ember.js and FRP 22:04 - MVC frameworks and FRP Juha Paananen: FRP, Bacon.js and stuff: Chicken, Egg and Bacon.js 24:35 - Learning FRP 25:49 - Where did FRP come from? What is (functional) reactive programming? - Stack Overflow Conal Elliott: Composing Reactive Animations Haskell Reactive-banana - HaskellWiki 29:07 - Going beyond visual media substack/stream-handbook 32:18 - Wrappers 33:31 - How to build things with FRP libraries Juha Paananen @ MLOC.JS: Functional Reactive Programming in JavaScript using Bacon.js Picks SlideShare: Functional Reactive Programming in JavaScript (AJ) Valve: The AI Systems of Left 4 Dead by Michael Booth (Jamison) programming is terrible (Jamison) Simple Made Easy: Rich Hickey (Jamison) AngularJS Fundamentals (Joe's Pluralsight Course) (Joe) Open Source Bridge (Joe) That Conference (Joe) Star Trek: Into Darkness (Joe) ServerBear (AJ) rainwave (AJ) rwbackend (AJ) Mesa Boogie Lone Star Guitar Amplifier (Merrick) backburner.js (Merrick) messageformat.js (Merrick) Digital Ocean (Chuck) Emacs (Chuck) emacs_libs (Chuck) Tmux (Chuck) GitLab (Chuck) Flight by Twitter (Joe F.) Ember.js (Joe F.) CodeMash (Joe F.) fantasy-land (Juha) The Bacon.js postings featuring Phil Roberts (Juha) Iron Sky (Juha) Reaktor Dev Day (Juha) Next Week Dojo with Dylan Schiemann Transcript MERRICK:  How come nobody acknowledges when I talk? What about that? JAMISON:  That’s a deeper problem than a microphone. [Hosting and bandwidth provided by the Blue Box Group. Check them out at Bluebox.net.]  [This episode is sponsored by Component One, makers of Wijmo. If you need stunning UI elements or awesome graphs and charts, then go to Wijmo.com and check them out.]  CHUCK:  Hey everybody, and welcome to Episode 61 of the JavaScript Jabber Show. This week on our panel, we have AJ O’Neal. AJ:  Yo, yo, yo. Coming at you live from Iowa. CHUCK:  Again? AJ:  Oh, I guess I was there last time, huh? It’ll be New York soon. CHUCK:  We have Jamison Dance. JAMISON:  Howdy, guys. CHUCK:  Joe Eames. JOE E:  Hey there. CHUCK:  Merrick Christensen. MERRICK:  What’s up? CHUCK:  I’m Charles Max Wood from DevChat.tv. This week, we have two special guests. We have Joe Fiorini. JOE F:  Hello everyone. CHUCK:  And Juha Paananen. JUHA:  Yeah. Hi everybody. Juha Paananen. CHUCK:  Thank you for straightening that up for me. We’re going to have you guys introduce yourself real quick, since you haven’t been on the show before. Joe, why don’t you start us off? JOE F:  Sure. My name is Joe Fiorini and I am an Interaction Developer at Designing Interactive in Cleveland, Ohio. I do a decent amount of JavaScript development every week. I’ve discovered Functional Reactive Programming three or four months ago and it’s changed my world. CHUCK:  Awesome. And Juha, do you want to introduce yourself as well? JUHA:  Yeah, why not? I’m Juha. I’m from Finland. Helsinki.

03:08 - John A. De Goes Introduction

• Twitter
• GitHub
• Blog
• SlamData

04:07 - PureScript

JavaScript Jabber Episode #189: PureScript with John A. De Goes and Phil Freeman

04:58 - “Purely Functional”

09:18 - Weaknesses With Functional Programming

• Object-oriented Programming
• Procedural Programming

14:36 - Organizing a FP Codebase

• John A. De Goes: A Modern Architecture for FP

17:54 - Beginners and Functional Programming; Getting Started

• Learning About the History of Functional Programming
• Hiring Junior Devs to do FP

28:20 - The Rise of Functional Programming in JavaScript-land

32:08 - Handling Existing Applications

36:03 - Complexity Argument

41:53 - Weighing Language Tradeoffs; Alt.js

Picks

• Nadia Odunayo: The Guest: A Guide To Code Hospitality @ RailsConf 2016 (Aimee)
• React Rally (Jamison)
• Cleanup Algorithm (Jamison)
• PostgreSQL Exercises (Jamison)
• iPad Pro (Chuck)
• Smart Keyboard for iPad Pro (Chuck)
• Apple Pencil (Chuck)
• GoodNotes (Chuck)
• John A. De Goes: Halogen: Past, Present, and Future (John)
• slamdata (John)

JSJ 272: Functional Programming and ClojureScript with Eric Normand

This episode of JavaScript Jabber features panelists Aimee Knight and Charles Max Wood. Special guest Eric Normand is here to talk about functional programming and ClojureScript. Tune in to learn more!

[00:1:14] Introduction to Eric Normand

Eric works for purelyfunctional.tv. The main target market for his company is those people who want to transition into functional programming from their current job. He offers them support, shows them where to find jobs, and gives them the skills they need to do well.

[00:02:22] Address that quickly

Functional programming is used at big companies such as Wal-Mart, Amazon, EBay, Paypal, and banks. They all have Clojure but it is not used at the scale of Java or Ruby.

So yes, people are using it and it is influencing the mainstream programming industry.

[00:3:48] How do you build an application?

A common question Eric gets is, “How do I structure my application?” People are used to using frameworks. Most start from an existing app. People want a process to figure out how to take a set of features and turn it into code. Most that get into functional programming have development experience. The attitude in functional programming is that they do not want a framework. Clojure needs to be more beginner friendly. His talk is a four-step process on how to turn into code.

[00:05:56] Can you expand on that a little?

There are four steps to the process of structuring an application.

1. Develop a metaphor for what you are trying to do. Developing the first implementation. How would you build it if you didn’t have code?
2. Develop the operations. What are their properties? Example: will have to sort records chronological.
3. Develop relationships between the operations.
4. Run tests and refactor the program. Once you have that, you can write the prototype.

[00:13:13] Why can’t you always make the code better?

Rules can’t be refactored into new concepts. They have to be thrown away and started completely over. The most important step is to think before beginning to write code. It may be the hardest part of the process, but it will make the implementation easier.

[00:17:20] What are your thoughts on when people take it too far and it makes the code harder to read?

He personally has written many bad abstractions. Writing bad things is how you get better as a programmer. The ones that go too far are the ones that don’t have any basis or are making something new up. They are trying to be too big and use no math to back up their code.

[00:20:05] Is the hammock time when you decide if you want to make something abstract or should you wait until you see patterns develop?

He thinks people should think about it before, although always be making experiments that do not touch production.

[00:23:33] Is there a trade off between using ClojureScript and functional JavaScript?

In terms of functional programming in JavaScript don’t have some of the niceties that there are in Clojure script. Clojure Script has a large standard library. JavaScript is not as well polished for functional programming; it is a lot of work to do functional programming it and not as much support.

[00:27:00:] Dave Thomas believes that the future of software is functional programming. Do you agree?

Eric thinks that it seems optimistic. He doesn’t see functional programming take over the world but does think that it has a lot to teach. The main reason to learn functional programming is to have more tools in your toolbox.

[00:31:40] If this is a better way to solve these problems, why aren’t people using it?

There is a prejudice against functional programming. When Eric was first getting into it, people would ask why he was wasting his time. Believes that people are jaded. Functional programming feels foreign because people are used to a familiar way of programming; they usually start with a language and get comfortable.

[00:40:58] If people want to get started with it, is there an easy way in?

Lodash is great to start replacing for loops. It will clean up code. There are other languages that compile to JavaScript. For example, Elm is getting a lot of attention right now. It is a Haskell like syntax. If you want more of a heavyweight language, use TypeScript or PureScript. ClojureScript is into live programming. You are able to type, save, and see results of the code immediately on the screen in front of you.

Picks

Aimee:

• The Hidden Cost of Abstraction 
• What Functional Language Should I Learn 

Eric

• Steven King, On Writing 
• Youtube Channel: Tested  

Charles

• Ionic Framework

Links

• Purely Functional TV 
• Blog 
• Building Composable Abstractions 

Panel:

• AJ ONeal
• Aimee Knight
• Joe Eames

Special Guests: Kyle Simpson

In this episode, the JavaScript Jabber panelists discuss light functional JavaScript with Kyle Simpson. Kyle is most well-known for writing the books You Don’t Know JS and is on the show today for his book Functional-Light JavaScript. They talk about what functional programming is, what side-effects are, and discuss the true heart behind functional programming. They also touch on the main focus of functional programming and much more!

In particular, we dive pretty deep on:

• You Don’t Know JS
• Functional-Light JavaScript
• From the same spirit as first books
• JavaScript
• Documents journey of learning
• What does Functional Programming mean?
• Functional programming is being re-awoken
• Many different definitions
• History of functional programming
• Programming with functions
• What is a function?
• “A collection of operations of doing some task” is what people think functions are
• What a function really is
• Map inputs to outputs
• What is a side-effect?
• Side-effects should be intentional and explicit
• The heart of functional programming
• Refactoring
• Can’t write a functional program from scratch
• What functional programming focuses on
• Making more readable and reliable code
• Pulling a time-stamp
• Defining a side-effect
• And much, much more!

Links:

• You Don’t Know JS
• Functional-Light JavaScript
• JavaScript
• Kyle’s GitHub
• @getify

Picks:

Aimee

• What Does Code Readability Mean?
• @FunctionalKnox
• HTTP 203 Podcast

AJ

• IKEA

Joe

• Barking Up the Wrong Tree by Eric Barker
• Workshops in general

Kyle

• GDPR
• The start-up’s guide to the GDPR
• Hatch
• Fluent Conf

Panel:

• Aimee Knight
• Joe Eames
• AJ ONeal

Special Guests: Jeremy Fairbank

In this episode, the JavaScript Jabber panel talks to Jeremy Fairbank about his talk Practical Functional Programming. Jeremy is a remote software developer and consultant for Test Double. They talk about what Test Double is and what they do there and the 6 things he touched on in his talk, such as hard to follow code, function composition, and mutable vs immutable data. They also touch on the theory of unit testing, if functional programming is the solution, and more!

In particular, we dive pretty deep on:

• Jeremy intro
• Works for Test Double
• What he means by “remote”
• What is Test Double?
• They believe software is broken and they are there to fix it
• His talk - Practical Functional Programming
• The 6 things he talked about in his talk
• Practical aspects that any software engineer is going to deal with
• Purity and the side effects of programming in general
• Hard to follow code
• Imperative VS declarative code
• Code breaking unexpectedly
• Mutable data VS immutable data
• The idea of too much code
• Combining multiple functions together to make more complex functions
• Function composition
• Elm, Elixir, and F#
• Pipe operator
• Scary to refactor code
• Static types
• The idea of null
• The theory of unit testing
• Is functional programming the solution?
• His approach from the talk
• And much, much more!

Links:

• Test Double
• His talk - Practical Functional Programming
• Elm
• Elixir
• F#
• @elpapapollo
• jeremyfairbank.com
• Jeremy’s GitHub
• Jeremy’s YouTube

Sponsors

• Kendo UI
• Sentry
• Digital Ocean

Picks:

Aimee

• American Dollar
• Force with lease

AJ

• Superfight

Joe

• The 2018 Web Developer Roadmap by Brandon Morelli
• Svelte

Jeremy

• Programming Elm
• The Secrets of Consulting by Gerald M. Weinberg
• Connect.Tech

Panel: 

• Joe Eames
• Aimee Knight
• AJ O'Neal
• Joe Eames

Special Guests: Christine Legge

In this episode, the JavaScript Jabber panel talks to Christine Legge about functional programming with Ramda. Christine is a front-end software engineer and just recently got a new job in New York working at Google. Ramda is a utility library in JavaScript that focuses on making it easier to write JavaScript code in a functional way. They talk about functional programming and what it is, using Ramda in Redux, and referential transparency. They also touch on why she first got into Ramda, compare Ramda to Lodash and Underscore, and more!

In particular, we dive pretty deep on:

• Chirstine intro 
• Works as a front-end software engineer
• What is Ramda? 
• JavaScript
• Utility library like Lodash and Underscore
• Lodash and Underscore VS Ramda
• Functional programming
• Ramda and Functional programming as a mindset
• Ramda at ZenHub
• Ramda with Redux and React
• What is referential transparency?
• Why would you use Ramda VS Lodash or Underscore?
• Why she first got into Ramda
• Didn’t always want to be a programmer
• Background in Math
• Learning functional programming as a new programmer
• Erlang
• DrRacket and Java
• Ramda makes it easy to compose functions
• Creating clean and reusable code
• How do you start using Ramda?
• And much, much more! 

Links:

• Ramda
• Lodash
• Underscore
• ZenHub
• Redux
• React
• Erlang
• DrRacket
• @leggechr
• Chirstine’s GitHub

Sponsors

• Kendo UI
• Sentry
• Digital Ocean

Picks:

Charles

• Home Depot Tool Rental
• Podcast Movement
• CES
• VRBO

Aimee

• Apple Cider Vinegar
• Jeremy Fairbank Talk – Practical Functional Programming

AJ

• Goat’s Milk

Joe

• Topgolf
• Framework Summit

Christine

• Dan Mangan
• Reply All Podcast

Sponsors

• Triplebyte offers a $1000 signing bonus
• Sentry use the code “devchat” for $100 credit
• Linode offers $20 credit
• CacheFly

Panel

• Charles Max Wood

Joined by Special Guest: Colby Tresness

Episode Summary

Coming to you live from the podcast booth at Microsoft BUILD is Charles Max Wood with Colby Tresness. Colby is a Program Manager on Azure Functions at Microsoft. Azure functions are the serverless functions on Azure. Colby explains what the Azure functions premium plan entails, then talks about KEDA – Kubernetes-based event-driven autoscaling, a Microsoft and Red Hat partnered open source component to provide event-driven capabilities for any Kubernetes workload. One of the other cool features of serverless functions they talk about is the Azure serverless community library.

Colby and Charles discuss the best way to get started with Azure functions, as well as the non-JavaScript languages it supports.

Links

• Colby’s GitHub
• Colby’s Twitter
• Colby’s LinkedIn
• Colby’s Blog
• Microsoft Build 2019
• KEDA
• Red Hat
• Azure Serverless Community Library
• Follow Adventures in Angular on tv, Facebook and Twitter.

Picks

Colby Tresness:

• Barry (TV Series 2018– ) – IMDb 

Charles Max Wood:

• The Legend of Zelda: Breath of the Wild
• The MFCEO Project Podcast – Andy Frisella 
• Downtown Seattle

Sponsors

• Triplebyte offers a $1000 signing bonus

• Sentry use the code “devchat” for 2 months free on Sentry small plan

• CacheFly

Panel

Charles Max Wood

Joined by Special Guest: Jeff Hollan

Episode Summary

Coming to you live from the podcast booth at Microsoft BUILD is Charles Max Wood with Jeff Hollan. Jeff is a Sr. Program Manager for the Azure Functions cloud service. Continuing from where Colby Tresness left off in Adventures in Angular 241: Azure Functions with Colby Tresness LIVE at Microsoft BUILD, Jeff defines what “serverless” really means in developer world. Jeff also talks about various scenarios where Azure functions are extremely useful and explains what Durable Functions are.

Jeff and Charles discuss creating and running an Azure function inside a container and the upcoming capabilities of Azure functions they are currently working on.

Links

• JavaScript Jabber 369: Azure Functions with Colby Tresness LIVE at Microsoft BUILD

• Durable Functions

• Jeff’s GitHub

• Jeff’s Twitter

• Jeff’s LinkedIn

• Jeff’s Website

• Jeff’s Medium

• Microsoft Build 2019

• Follow JavaScript Jabber on Devchat.tv, Facebook and Twitter.

Picks

Jeff Hollan:

• Calm App

• Game of Thrones TV Series

Charles Max Wood:

• Family Tree App

Sponsors

• Adventures in Blockchain

• Sentry– use the code “devchat” for $100 credit 

• My Ruby Story

Panel

• Aimee Knight 

• Chris Buecheler

• AJ O’Neal

With Special Guest: Brian Lonsdorf

Episode Summary

Brian Lonsdorf works for Salesforce, specializes in functional programming, and wrote a book called Professor Frisby’s Mostly Adequate Guide to Functional Programming. Brian talks about when he got into functional programming and when in their career others should be exposed to it. He talks about the fundamental tenets of functional programming (static mathematical functions), how it differs from object oriented programming, and how to manipulate data in a functional environment. The panel wonders if it is possible to use functional and object oriented programming together and discuss the functional core imperative shell. Brian talks about what is ‘super functional’ and why JavaScript isn’t, but includes methods for making it work. He shares some of the trade-offs he’s found while doing functional programming. Brian defines a monad and goes over some of the common questions he gets about functional programming, such as how to model an app using functional programming. The show concludes with Brian talking about some of the work he’s been doing in AI and machine learning. 

Links

• Promise

• Functional core, imperative shell

• RxJs

• Monad

• Professor Frisby's Mostly Adequate Guide to Functional Programming

Follow DevChat on Facebook and Twitter

Picks

Aimee Knight:

• After The Burial (band)

Chris Buecheler:

• Minecraft in JavaScript

AJ O’Neal:

• Crazy Little Thing Called Love by Queen

• Greenlock v3 campaign

Brian Lonsdorf:

• Follow Brian @drboolean

• Chris Penner Comonads

Krzaklewska, Ewa , author

In this issue of JAMA Cardiology, Lim and colleagues report on cardiovascular functional reserve in people with end-stage renal disease before and after kidney transplant. They performed a 3-arm, prospective, concurrent cohort study to assess change in cardiovascular functional reserve after kidney transplant using state-of-the-art cardiopulmonary exercise testing (CPET). They also assessed left ventricular morphologic findings 1 year after transplant. They enrolled 81 participants with stage 5 chronic kidney disease (CKD) who underwent kidney transplant, 85 wait-listed participants with stage 5 CKD who had not undergone transplant, and 87 controls treated for hypertension only. The authors quantified cardiovascular functional reserve using CPET in parallel with transthoracic echocardiography. One year after transplant, a significant improvement in maximum oxygen consumption was found in the transplant group compared with the nontransplant group. Moreover, left ventricular function improved but not the body mass index.

This cohort study assesses cardiovascular functional reserve before and after kidney transplant in patients with end-stage renal disease.

This Special Communication proposes a classification of patients with left-ventricular disease according to the severity of mitral regurgitation that is proportionate vs disproportionate to left-ventricular end-diastolic volume.

O'Toole, Peter Martin, author

Levinton, Jeffrey S., author

Barker Library - Z682.H495 2018

Faunce, T

Cisco announces major changes to their associate-level certifications aligning with the evolving job market and the latest Cisco technology.

New Cisco Press Materials Forthcoming, Plus Special 40% Offer

Online Resource

Online Resource

Online Resource

Godfrey, Paul C., author

Council of Supply Chain Management Professionals, author

Council of Supply Chain Management Professionals, author

Bergman, Nicklas, author

Edmonds, Mike, author