Code Tool for the Editor.js allows to include code examples in your articles.
Get the package
npm i --save-dev @editorjs/codeInclude module at your application
const CodeTool = require('@editorjs/code');- Upload folder 
distfrom repository - Add 
dist/bundle.jsfile to your page. 
You can load specific version of package from jsDelivr CDN.
https://cdn.jsdelivr.net/npm/@editorjs/[email protected]
Require this script on a page with Editor.js.
<script src="..."></script>Add a new Tool to the tools property of the Editor.js initial config.
var editor = EditorJS({
  ...
  tools: {
    ...
    code: CodeTool,
  }
  ...
});| Field | Type | Description | 
|---|---|---|
| placeholder | string | 
Code Tool's placeholder string | 
This Tool returns code.
{
    "type" : "code",
    "data" : {
        "code": "body {\n font-size: 14px;\n line-height: 16px;\n}",
    }
}