A one-page sheet with the basics for creating Reagent components for use with Re-frame. Get started with Re-frame right away.
Download Resources
PDFs, code, and other downloads to help you learn Ring has a small SPEC. It’s centered around defining the keys one can expect in the request and response maps. And the exact names for keywords are easy to forget. A while ago, I printed out a quick summary of the keys for the request and response maps and hung it on the wall behind […] These are all of the commands Eric uses to do TDD in Cider. Code to accompany The Ultimate Guide to Clojure Concurrency and the Clojure Concurrency Course. It’s example code for a variety of concurrency primitives.Ring Spec to Hang on the Wall
TDD in Emacs Clojure Reference Sheet
The Ultimate Guide to Clojure Concurrency Code
Written Guides
Pragmatic and in-depth guides to a topic. We look at a sequence diagram to organize the parts of Re-frame. Learn the 4 React Lifecycle Methods you’ll need to know for Reagent/Re-frame and why the other 6 are not needed. Re-frame gives us several places to put our state. So how do we choose? It turns out the decision is easy. Find out the two types of jobs that tell you how much you need to learn to be hirable. Re-frame adds a beneficial amount of structure to your frontend app. This guide goes over all of the pieces of that structure and how to use them. Clojure’s collections are central to Clojure programming. While in most languages, you might find collections somewhere in the standard library, in Clojure, they are front and center.Re-frame, a Visual Explanation
React Lifecycle for Re-frame
State in Re-frame
The 5 hurdles of hirability
The Re-frame Building Blocks Guide
The Ultimate Guide to Clojure Collections
Video Courses
Screencasts, Whiteboards, and Slides produced to help you learn You’ve heard that Clojure is great for concurrency. But what tools does Clojure give you? And how should you use those tools? These lessons are meant to each answer a specific question and help you build the skills you need to address a wide variety of concurrency problems. Clojure core.async provides basic building blocks for communication and coordination. This course explores ten patterns you can easily implement using those building blocks. With so many data formats out there, it’s good to see some example code for reading and writing different formats. I’m talking JSON, CSV, EDN, and more. This course explores how to read and write data formats using Clojure. In Clojure, the common advice is “just use a map”. There’s some truth to that, but it’s obviously more complicated. Clojure gives you lots of ways to model a problem. In this course, I give you a peek behind the curtain. I work step-by-step through different iterations of a domain model, discussing what I’m thinking, why I’m trying something else. We model the game of solitaire, a card game we’re all familiar with. Ever wonder how to read those destructuring forms? Do you want to know how to make your code clearer and shorter? Where can destructuring be used? And how do you construct each one? This course starts from the basics and works through all of the destructuring forms, ending with some examples and advice for using them.Concurrency
core.async Patterns
Data Formats
Data Modeling in Clojure
Destructuring
Video Lessons
Parts of courses on specific topics If you’re curious about how the Leiningen project we used was created, I walk through the steps of creating a new project and setting up the bakery dependency. Applicative functor is the topic of this video. It is a type of Functor that is extended to let you apply a functor of functions to a functor of its arguments. This lesson teaches what apply does, how you can implement it, and when you’d want to use it. This lesson includes a video screencast. The video is 6 minutes long. In this lesson, things start getting serious. You’ve hired more workers, now they need to work together to build cars. And the common technique in factories is to use an assembly line. Learn to create patterns of communication between your processes using channels. Like we said before, reduce is kind of a universal recursion over lists. We can implement a function to calculate the average using reduce. Backpressure is incredibly important in a distrubuted environment. Our servers can face more load than they can handle. Web requests are cheaper to produce than to respond to. The best practice when faced with more requests than you can handle is to immediately respond that you can’t handle it so that you can continue processing the requests you’ve already accepted.Appendix: Creating a Leiningen project
Applicative Functor
apply
Assembly Line (Coordinating Between Processes)
Average using reduce
Backpressure
Technical Articles
There are several features of Java that generate weird classnames. We look at how to refer to them from Clojure. There are many reasons to learn Functional Programming. I go over my 11 favorite reasons. Reason #1 is it’s fun! I had to choose between Re-frame and Om Next when building a course. Here are the reasons why. Clojure error messages and stacktraces are the number one most complained-about feature of Clojure. We look at some tips and resources for dealing with them.Tricks for Java interop
Why Functional Programming?
Why Re-frame instead of Om Next
Wrangling Clojure Stacktraces
Speaker Interviews
We interviewed Asher Coren about his upcoming Clojure/conj 2016 talk. We interviewed Bill Piel about his upcoming Clojure/conj 2016 talk. We Interviewed Brandon Kase about his upcoming Curry On talk called Composable Caching in Swift. We interviewed Brian L. Troutwine about his upcoming Lambda Days 2017 talk. We talked to Caitie McCaffrey about her upcoming YOW! Sydney 2016 talk. Chris Birchall will be speaking at Lambda World 2016. I interviewed him about his talk.Asher Coren Clojure/conj 2016 Interview
Bill Piel Clojure/conj 2016 Interview
Brandon Kase Curry On 2017 Interview
Brian L. Troutwine Lambda Days 2017 Interview
Caitie McCaffrey YOW! Sydney 2016 Interview
Chris Birchall Interview
Newsletter Issues
Issue 271 – April 02, 2018 路 Archives 路 Subscribe Hi Clojurers, You may be surprised to see me in your inbox today. I’ve been working on email deliverability (I’ve been learning the hard way that that is a thing) and I corrected some major issues. Sorry if they’ve been affecting you. Hello and welcome […] Issue 270 – March 26, 2018 路 Archives 路 Subscribe Hi Clojurers, I’ve been working on a new course, this one about Domain Specific Languages (DSL) in Clojure. Writing languages comes naturally in Lisp–it was originally defined in itself with a handful of built-in primitives. The leverage is amazing. And that tradition continues. Lispers like […] Issue 269 – March 19, 2018 路 Archives 路 Subscribe Elements of Clojure Book Zach Tellman’s book is now a complete draft of the book. It’s all there, folks, after years of anticipation. This book should be read by all Clojurists and has a lot to offer serious programmers of any language. It’s a journey […] Issue 268 – March 12, 2018 路 Archives 路 Subscribe Hi Clojurers, Nothing much to say this week. Just enjoying the weather 馃檪 Please enjoy the issue. Rock on!Eric Normand <eric@purelyfunctional.tv> PS Want to get this in your email? Subscribe! Apropos Episode 2 YouTube We did it again! A panel of four Clojurists discussed live. […] Issue 267 – March 5, 2018 路 Archives 路 Subscribe Hi Clojurists, Please enjoy the issue. Rock on! Eric Normand <eric@purelyfunctional.tv> PS Want to get this in your email? Subscribe! Apropos Episode 1 YouTube Ray McDermott has masterminded a new show. It’s called Apropos. It’s half news and opinions, and half live coding. I’m on […] Issue 266 – February 26, 2018 路 Archives 路 Subscribe Hi Clojurators, As far back as we can tell, Lisp has always been an interactive language. It was used in AI research, where you don’t know exactly how to solve the problem. You just had some ideas and wanted to test them out and learn […]PurelyFunctional.tv Newsletter 271: Falsehoods, Deliverability, cljs.main
PurelyFunctional.tv Newsletter 270: Lisp and the metacircular interpreter
PurelyFunctional.tv Newsletter 269: Elements, Domains, Revenge!
PurelyFunctional.tv Newsletter 268: Apropos, Datomic, Serverless
PurelyFunctional.tv Newsletter 267: Debugging, REPLs, Theory
PurelyFunctional.tv Newsletter 266: Beginner Experience