monaco-editor

What is monaco-editor?

The monaco-editor npm package provides the code editor that powers VS Code, offering rich IntelliSense, validation for a variety of languages, and advanced editing features. It can be integrated into web applications to provide a full-fledged code editing experience.

What are monaco-editor's main functionalities?

Syntax highlighting and IntelliSense

This code initializes the Monaco Editor with JavaScript syntax highlighting and IntelliSense support.

var editor = monaco.editor.create(document.getElementById('container'), {
  value: 'function x() {\n  console.log("Hello world!");\n}',
  language: 'javascript'
});

Code validation and linting

This code adds a marker to the editor model, indicating an error at the specified position with a message.

monaco.editor.setModelMarkers(editor.getModel(), 'owner', [
  { startLineNumber: 1, startColumn: 1, endLineNumber: 1, endColumn: 1, message: 'Error message', severity: monaco.MarkerSeverity.Error }
]);

Custom themes

This code defines a custom theme for the editor and applies it.

monaco.editor.defineTheme('myTheme', {
  base: 'vs',
  inherit: true,
  rules: [{ background: 'EDF9FA' }],
  colors: { 'editor.foreground': '#000000' }
});
monaco.editor.setTheme('myTheme');

Keybindings and editor actions

This code adds a custom action to the editor that can be triggered with a keyboard shortcut.

editor.addAction({
  id: 'my-unique-id',
  label: 'My Label',
  keybindings: [monaco.KeyMod.CtrlCmd | monaco.KeyCode.KEY_S],
  run: function(ed) {
    alert('Action triggered!');
  }
});

Other packages similar to monaco-editor

ace

Ace is a standalone code editor written in JavaScript. It is similar to monaco-editor but with a different API and less out-of-the-box language support. Ace is lightweight and can be easier to integrate into existing projects.

codemirror

CodeMirror is another browser-based code editor with features like syntax highlighting, a rich API, and various language modes. It is less resource-intensive than monaco-editor and is often used in scenarios where performance is critical.

brace

Brace is a fork of Ace that packages the editor for use with browserify, which can make it easier to use with npm and Node.js-based build systems. It offers similar functionality to Ace.

README

The README file is missing