Functional Design in Clojure

Latest Episodes:

Ep 079: Compose Thyself Jul 03, 2020

Show notes

Each week, we discuss a different topic about Clojure and functional programming.

If you have a question or topic you'd like us to discuss, tweet @clojuredesign, send an email to feedback@clojuredesign.club, or join the #clojuredesign-podcast channel on the Clojurians Slack.

This week, the topic is: "comp." We create a whole episode by combining examples of useful uses of comp.

Selected quotes:

"It's the Voltron of functions."
"Our only tool for the job is functions."
"Getting your higher-order functional thinking going."
"Not only is it concise, it's really easy to understand, which is one of the awesome superpowers of Clojure."

Links:

comp

Related Episodes:

Ep 078: Impartial Thoughts Jun 19, 2020

Show notes

Each week, we discuss a different topic about Clojure and functional programming.

If you have a question or topic you'd like us to discuss, tweet @clojuredesign, send an email to feedback@clojuredesign.club, or join the #clojuredesign-podcast channel on the Clojurians Slack.

This week, the topic is: "partial." We cover some of the ways we use partial, without getting too literal.

Selected quotes:

"We love punning so much, we pun in our code."
"It didn't help that I encountered this in academia."
"Not the function you have, but the function you need."
"I would use partial more if it wasn't so long."

Links:

partial

Episodes:

014: Fiddle with the REPL

Ep 077: Thread Some Jun 12, 2020

Show notes

Each week, we discuss a different topic about Clojure and functional programming.

If you have a question or topic you'd like us to discuss, tweet @clojuredesign, send an email to feedback@clojuredesign.club, or join the #clojuredesign-podcast channel on the Clojurians Slack.

This week, the topic is: "some-> and some->>." We spend some time going through how these macros help keep our code nil-safe.

Selected quotes:

"Keep trying till you hit a nil and then stop."
"That seemed all well and good, and then I hit nil."
"It ends up being just a bit more concise."
"A nice way of testing something and then being able to use it right away."

Links:

Ep 076: Multiple Views on Juxt Jun 05, 2020

Show notes

Each week, we discuss a different topic about Clojure and functional programming.

If you have a question or topic you'd like us to discuss, tweet @clojuredesign, send an email to feedback@clojuredesign.club, or join the #clojuredesign-podcast channel on the Clojurians Slack.

This week, the topic is: "juxt." We take a turn with juxt, looking at all the ways it can help line up data.

Selected quotes:

"When it feels like core is missing something obvious, there's probably an idiom you need to learn."
"The way you become an excellent writer of Clojure is by reading excellent Clojure code."

Links:

Episodes:

Ep 075: Merge With Fun May 22, 2020

Show notes

Each week, we discuss a different topic about Clojure and functional programming.

If you have a question or topic you'd like us to discuss, tweet @clojuredesign, send an email to feedback@clojuredesign.club, or join the #clojuredesign-podcast channel on the Clojurians Slack.

This week, the topic is: "merge-with." We focus in on merge-with, a powerful function for aggregating data.

Selected quotes:

"We pick up idioms from other people."
"What sounds insane at face value actually starts to make a lot of sense."
"It's just a filter, you don't even have to write a function for that."
"The important part in the middle, where we might mess up, is all pure."
"We don't just have an O(n) problem, we have an 0(n) API calls problem."

Links:

merge-with

Episodes:

047: What is "nil punning"?

Ep 074: Deploy, They Said. It'll Be Fun, They Said. May 15, 2020

Show notes

Each week, we discuss a different topic about Clojure and functional programming.

If you have a question or topic you'd like us to discuss, tweet @clojuredesign, send an email to feedback@clojuredesign.club, or join the #clojuredesign-podcast channel on the Clojurians Slack.

This week, the topic is: "Deploying Clojure." We survey the myriad ways we've used to launch our code into production, and laugh about the various complexities we've found.

Selected quotes:

"How do you get closure on the development of your Clojure code?"
"What do you mean by production?"
"Tomcat goes to war."
"That was back before containers."
"Trade a little bit of money for a lot of sanity."
"The problem with these things is the configuration you end up with is really simple after you've read 8 hours of documentation."
"The number of lines of code does not indicate the amount of effort."
"Every time you accept a new component into your system, you are also accepting its complexity."

Ep 073: Silent Sockets Apr 17, 2020

Show notes

Each week, we discuss a different topic about Clojure and functional programming.

If you have a question or topic you'd like us to discuss, tweet @clojuredesign, send an email to feedback@clojuredesign.club, or join the #clojuredesign-podcast channel on the Clojurians Slack.

This week, the topic is: "Checking websocket health." We worry about the health of our websockets and, after looking for help from the standards bodies, roll up our sleeves and handle it ourselves.

Selected quotes:

"It's the ghosting in the websocket world."
"With polling, every request is a fresh opportunity to recover from the last request's errors."
"Long polling is just beating the server up at a slower rate."
"By giving your code names with meaning, you can read the code that uses it and comprehend it faster."
"Complexity costs, and you pay in time and confusion."

Related episodes:

Ep 072: Sea of Sockets Apr 03, 2020

Show notes

Each week, we discuss a different topic about Clojure and functional programming.

If you have a question or topic you'd like us to discuss, tweet @clojuredesign, send an email to feedback@clojuredesign.club, or join the #clojuredesign-podcast channel on the Clojurians Slack.

This week, the topic is: "Organizing our websocket code." We switch to using a component to manage our websockets, enabling ease of development and future growth.

Selected quotes:

"It feels like every time I use a global, a butterfly dies."
"We don't want to leave the REPL!"
"It's important to keep the abstraction un-leaky."
"When you lower the cognitive load of programming, that makes it more enjoyable."

Ep 071: Socket Synergy Mar 20, 2020

Show notes

Each week, we discuss a different topic about Clojure and functional programming.

If you have a question or topic you'd like us to discuss, tweet @clojuredesign, send an email to feedback@clojuredesign.club, or join the #clojuredesign-podcast channel on the Clojurians Slack.

This week, the topic is: "Using websockets for notification." We wander into the weeds, jumping through the myriad hoops required to deliver a simple notification.

Selected quotes:

"It's like we're taking a regular series and upgrading it somehow."
"Welcome to programming, where you'll spend hours diving into rabbit holes; and still love your work!"
"That sentence you just said sounds something they would say in a movie that would make all the programmers in the audience roll their eyes simultaneously."
"We just replaced one problem with another."

Related episodes:

053: How can I save my data from serialization?

Ep 070: Socket Circus Mar 13, 2020

Show notes

Each week, we discuss a different topic about Clojure and functional programming.

If you have a question or topic you'd like us to discuss, tweet @clojuredesign, send an email to feedback@clojuredesign.club, or join the #clojuredesign-podcast channel on the Clojurians Slack.

This week, the topic is: "Websockets." We talk about spontaneously sending data from the server to the client to address our users' insecurities.

Selected quotes:

"Classic engineering solution, let's just bend a couple of assumptions."
"Reloading the web page is 1995-style integration."
"Poll every tenth of a second? Yeah, that'll work till we need to scale past 4 users."
"In every engineering choice, there is always a tradeoff."

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