28 Nov 2022People sometimes ask me how I write my interactive tutorials. I can point at the HTML+CSS+JS but that doesn't show the process. On this page I'll recreate the first half of my circle drawing tutorial, showing an implementation using Vue.js v2[1]. The implementation style here will be similar if you use Vue v3 or React or Preact or Lit or Svelte etc. I also have another page showing an implementation using the D3.js/jQuery imperative style.