#codemirror #webdev #vanillajs #esbuild

When you write an HTML form, textarea is the standard way to support multi-line input, but it's not suitable for every application. CodeMirror describes itself as a “code editor component for the web”, and might be a suitable replacement for a textarea if you want something more like a code editor.

This article describes how to replace a textarea with a CodeMirror editor in under 30 lines of code and (hopefully) under 30 minutes of effort. It uses some very basic tooling to create an artifact that's no harder to deploy than vanilla JavaScript and HTML.

You can also jump straight to the source code if you prefer.