Installation

Installer

npx vertex-editor ./public

Install the read-only variant:

npx vertex-editor ./public --lite

The same installer can be streamed without installing a package:

curl -fsSL https://raw.githubusercontent.com/Andersseen/vertex/main/scripts/install.mjs | node - ./public

Plain HTML

<script src="/web-editor.min.js"></script>

<vertex-editor
  value="const answer: number = 42;"
  language="typescript"
  theme="dark"
  line-numbers="true"
  height="360px"
  aria-label="TypeScript editor"
></vertex-editor>

For read-only display, load web-editor-lite.min.js and use <vertex-editor-lite>.

Loading rules

• Load each bundle once.
• Wait for the ready event before relying on methods that need CodeMirror.
• Set boolean attributes to "true" or "false".
• Use properties or setValue() for frequent programmatic updates.
• Always provide a useful aria-label in context.