Partitioning data

Functions like map, filter, and reduce are useful tools that many developers keep in their toolbox. partition may not be as commonly known, but in this post I'll show you why it should be.

December 21 2020Clojure, Functional programming

Proper URLs for your SPA on S3 behind Cloudfront

In this post I'll show you how to use Lambda@Edge to give JavaScript frontends ("Single Page Applications") on AWS S3 behind Cloudfront proper URLs even when all you have is a single HTML file and some JavaScript.

October 10 2020AWS

Editing for cleaner merges

As we add new code to existing files, it feels natural to append – add new functions at the end of the file, new requires at the end of the list of requires, and so on. This approach introduces some friction, and in this post I'll share some pointers for improved editing and git workflow.

September 17 2020Git, Programming

Devops! Dev? Ops!

Det skorter for tiden ikke på bedrifter i IT-sfæren som skryter av at de driver med Devops. Men gjør de egentlig det? Hvis løsningen er et "devops-team" eller stillingsutlysninger for "en devopser", er sjansen dessverre liten for at vi henter ut det beste devops har å by på.

December 17 2019AWS

JavaScript Coercion 101

Det er lite vi utviklere elsker mer enn å peke på galskap i JavaScript, så som [] + 2 === "2", men dersom jobben din er å skrive kode i dette språket, eller språk som kompilerer til JavaScript uten å skjule denne oppførselen (eksempelvis TypeScript og ClojureScript) vil du spare mye tid i feilsøking og koding ved å forstå hvorfor ting er som de er.

November 27 2019JavaScript

Når AWS-regninga blir skyhøy

Det er fort gjort å komme opp og gå i skyen, men før du får sukk for deg har du en løsning der du nærmest skuffer penger i retning Amazon. Hva gjør du den dagen du oppdager at AWS-regninga er mye høyere enn du hadde forventet?

September 25 2019AWS

AWS Free Tier

Dette er en liten historie om hvordan EFS nærmest tok livet av Kubernetes-clusteret vårt, og hvordan du kan unngå å havne i samme knipa — selvom du ikke bruker EFS.

July 24 2019AWS, EFS

CSS Grid

CSS grids har endelig gitt oss en enkel og fleksibel modell for layout på nett. Med bare noen få properties kan du stort sett pakke float helt bort, få full kontroll over kilde-rekkefølge og et kraftig verktøy for responsiv design på kjøpet.

July 3 2019CSS

A Better Playlist Shuffle with Go

Shuffling music playlists with less random and more cleverness, using Go.

April 19 2019Go, Spotify

Clojure in Production with tools.deps

A lean and fast setup for packaging Clojure applications for production using tools.deps

April 14 2019Clojure, tools.deps

tools.deps, figwheel-main, Devcards, and Emacs

A primer on setting up a ClojureScript project with tools.deps, figwheel.main, devcards, and optionally Emacs.

January 19 2019Clojure, ClojureScript, Devcards, Emacs, Figwheel

A Unified Specification

An approach to describing the structure of data in ClojureScript applications in one place, and using it to power Datascript schemas, specs, and coercions for data from external sources.

September 26 2018Clojure, Datascript, clojure.spec

Git Subtree for Multiple Directories

How to split Git repos.

May 3 2018Git

Processing data with Clojure and Go

April 20 2018Clojure, Go, Spotify

Webslides Syntax Highlighting with Prism

April 4 2018CSS

Optimized Optimus Asset Paths from ClojureScript

March 31 2018Clojure

Securing HAProxy sites with Let's Encrypt SSL Certificates

March 10 2018HAProxy, Letsencrypt, TLS/HTTPS

Setting up an Api Gateway Proxy Resource using Cloudformation

December 11 2017AWS Api Gateway, Cloudformation

Idempotent Cloudformation Updates

October 19 2017Cloudformation

Querying across Datomic databases

Among its many, many unique and interesting features, Datomic supports datalog queries across multiple databases. I recently had a chance to actually use this feature, and thought I'd share an actual example of it.

June 17 2017Clojure, Datomic

Annotating Datomic transactions

Datomic creates a transaction entity every time you transact data. These entities can be freely extended for a multitude of use cases.

June 17 2017Clojure, Datomic

Referentially transparent CRUD

June 17 2017Clojure, Datomic

Clojure to die for

A selection of the details that makes Clojure such an enjoyable language to work with.

March 11 2014Clojure

Building static sites in Clojure with Stasis

An in-depth code-along guide to building static web sites powered by the Stasis library.

March 10 2014Clojure

An introduction to Emacs Lisp

A long, thorough introduction to programming in Lisp in general, and Emacs Lisp in particular

July 1 2012Elisp, Emacs