react-ace

What is react-ace?

The react-ace package is a React component for the Ace editor, which is a powerful code editor written in JavaScript. It allows you to embed the Ace editor into your React applications, providing a rich set of features for code editing, syntax highlighting, and more.

What are react-ace's main functionalities?

Basic Usage

This code demonstrates the basic usage of the react-ace package. It imports the necessary modules and sets up an Ace editor with JavaScript mode and the GitHub theme.

import React from 'react';
import AceEditor from 'react-ace';
import 'ace-builds/src-noconflict/mode-javascript';
import 'ace-builds/src-noconflict/theme-github';

function MyEditor() {
  return (
    <AceEditor
      mode="javascript"
      theme="github"
      name="editor"
      editorProps={{ $blockScrolling: true }}
    />
  );
}

export default MyEditor;

Customizing Editor Options

This code sample shows how to customize various options of the Ace editor, such as font size, print margin, gutter, active line highlighting, and enabling autocompletion and snippets.

import React from 'react';
import AceEditor from 'react-ace';
import 'ace-builds/src-noconflict/mode-javascript';
import 'ace-builds/src-noconflict/theme-github';

function MyEditor() {
  return (
    <AceEditor
      mode="javascript"
      theme="github"
      name="editor"
      fontSize={14}
      showPrintMargin={true}
      showGutter={true}
      highlightActiveLine={true}
      setOptions={{
        enableBasicAutocompletion: true,
        enableLiveAutocompletion: true,
        enableSnippets: true,
        showLineNumbers: true,
        tabSize: 2,
      }}
    />
  );
}

export default MyEditor;

Handling Editor Events

This example demonstrates how to handle events in the Ace editor. The onChange event is used to log the new value of the editor whenever it changes.

import React from 'react';
import AceEditor from 'react-ace';
import 'ace-builds/src-noconflict/mode-javascript';
import 'ace-builds/src-noconflict/theme-github';

function MyEditor() {
  const onChange = (newValue) => {
    console.log('change', newValue);
  };

  return (
    <AceEditor
      mode="javascript"
      theme="github"
      name="editor"
      onChange={onChange}
    />
  );
}

export default MyEditor;

Other packages similar to react-ace

react-codemirror2

The react-codemirror2 package is a React component for the CodeMirror editor. It provides similar functionalities to react-ace, such as syntax highlighting, code folding, and customizable themes. However, CodeMirror is known for its flexibility and extensive list of supported languages and modes.

react-monaco-editor

The react-monaco-editor package is a React component for the Monaco editor, which is the code editor that powers Visual Studio Code. It offers advanced features like IntelliSense, parameter hints, and a rich API for extensions. Compared to react-ace, react-monaco-editor provides a more feature-rich and modern editing experience.

react-simple-code-editor

The react-simple-code-editor package is a lightweight code editor component for React. It is built on top of the Prism syntax highlighter and is designed to be simple and easy to use. While it lacks some of the advanced features of react-ace, it is a good choice for basic code editing needs.

README

React-Ace

A set of react components for Ace / Brace

DEMO of React Ace

DEMO of React Ace Split Editor

DEMO of React Ace Diff Editor

Install

npm install react-ace

Basic Usage

import React from 'react';
import { render } from 'react-dom';
import brace from 'brace';
import AceEditor from 'react-ace';

import 'brace/mode/java';
import 'brace/theme/github';

function onChange(newValue) {
  console.log('change',newValue);
}

// Render editor
render(
  <AceEditor
    mode="java"
    theme="github"
    onChange={onChange}
    name="UNIQUE_ID_OF_DIV"
    editorProps={{$blockScrolling: true}}
  />,
  document.getElementById('example')
);

Examples

Checkout the example directory for a working example using webpack.

Documentation

Ace Editor

Split View Editor

Diff Editor

How to add modes, themes and keyboard handlers

Frequently Asked Questions

Backers

Support us with a monthly donation and help us continue our activities. [Become a backer]

Sponsors

Become a sponsor and get your logo on our README on Github with a link to your site. [Become a sponsor]

Changelog

6.2.2

• Upgrade dev dependencies (webpack,jsdom,react)
• In type definitions, move debounceChangePeriod from AceOptions