Frontend Code Editor

How to transform a textarea into a code input element using CodeMirror and webpack.

Given a <textarea id="code-editor">, the following Javascript snippet will transform it visually into a full blown source code editor (using CodeMirror).

// webpack import lines
import CodeMirror from 'codemirror/lib/codemirror.js'
import 'codemirror/lib/codemirror.css'
import 'codemirror/theme/monokai.css'
import 'codemirror/mode/javascript/javascript.js'

// get the target textarea
const textarea = document.getElementById('code-editor')

// configure codemirror
const opts = { lineNumbers: true, theme: 'monokai', mode: 'javascript' }
CodeMirror.fromTextArea(textarea, opts)

I picked language support for javascript and the theme monokai here, but you can use whatever you want, Codemirror has support for many languages and color themes.

Linked Technologies

What it's made of

illustration of HTML

The backbone of the web. Master it to craft structured, accessible content for any online project, from simple sites to complex applications!

illustration of Javascript

Power up your web projects! Essential for dynamic interactions and seamless user experiences. A must-have for every developer's toolkit.

Linked Categories

Where it's useful

illustration of Frontend Development
Frontend Development

Explore the latest tools and techniques for crafting responsive designs, enhancing user interfaces, and optimizing web performance.