Hello, Kotlin!
We're switching from Clojure to Kotlin at work. Is that good? I don't know yet! Here are some things I love about Clojure: its incredible REPL EDN keywords maps with heterogeneous keys and values
Jun 25, 20261 min read37
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Vertical Tabs in Chrome
I've been using Arc Browser for a long time. Why? Because I love vertical tabs in my browser. They allow me to read more of each tab's title when I have a lot of tabs. What Are Vertical Tabs? Tabs are
Apr 17, 20263 min read39
Transpose a Matrix in Clojure
Imagine rows of letters, numbers, and Greek letters: [[:a :b] [:1 :2] [:alpha :beta]] Now, you want to transpose them. You started with a vector of vectors. Clojure's map function is pretty amazing
Nov 6, 20252 min read51
Binary Search in Clojure
I decided to implement linear search before going after binary search. Now, I’m ready! With linear search, we required the elements be sorted. We didn’t require the elements be bounded. In binary search, the inputs must be bounded because we maintain...
Nov 4, 20252 min read42
Linear Search in Clojure
I consider myself a classically trained computer scientist. However, I don’t regularly practice implementing algorithms at home. I hope to do more of that! At work, I do much higher level things, like partnering with a product manager, establishing a...
Nov 2, 20253 min read28
Clojure +, +', and unchecked-add
+ In Clojure core there’s a handy function, +. I’ll bet you know what it does: (+ 1 2 3) ;;=> 6 Let’s introduce a handy function as we explore: (defn value-and-type [& args] (map (juxt identity type) args)) Let’s look at the largest supported L...
Oct 9, 20251 min read40
Clojure Ratios
Computers do math really quickly. Yet, computers struggle with all kinds of things with math. Take, for example, the simple fraction: 2/3. This should be easy to store right? In most languages, it isn’t. We’re going to use 2/3 throughout all our exam...
Oct 7, 20252 min read90
Repeating Digits in Clojure
My son asked me if I could make the computer double numbers, like 2 4 6 → 22 44 66 I started with a really ugly solution: (map (fn [x] (parse-long (clojure.string/join "" [(str x) (str x)]))) [2 4 6]) ;;=> (22 4...
Sep 20, 20252 min read44
Sliding Windows in Clojure
I was doing a little Clojure programming and my son asked me if the computer could make it go 1 2 3, 2 3 4, 3 4 5, … I thought, hmm, that’s a sliding window. Here was my first thought: (->> (range 1 4) (map (fn [x] [x (inc x) (inc (inc x))])))...
Sep 18, 20252 min read54