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React Ace Component

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Top Related Projects

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In-browser code editor (version 5, legacy)

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CodeMirror 6 component for React. @codemirror https://uiwjs.github.io/react-codemirror/

Quick Overview

React-Ace is a React component for the Ace code editor. It provides a simple way to integrate the powerful Ace editor into React applications, allowing developers to easily add code editing capabilities to their projects with syntax highlighting, autocompletion, and other advanced features.

Pros

  • Easy integration with React applications
  • Supports multiple programming languages and themes
  • Highly customizable with numerous configuration options
  • Regular updates and active community support

Cons

  • Large bundle size due to Ace editor dependencies
  • Some advanced features may require additional setup
  • Performance can be affected when handling very large files
  • Limited mobile support

Code Examples

  1. Basic usage:
import React from 'react';
import AceEditor from 'react-ace';

import 'ace-builds/src-noconflict/mode-javascript';
import 'ace-builds/src-noconflict/theme-monokai';

function CodeEditor() {
  return (
    <AceEditor
      mode="javascript"
      theme="monokai"
      onChange={(newValue) => console.log(newValue)}
      name="UNIQUE_ID_OF_DIV"
      editorProps={{ $blockScrolling: true }}
    />
  );
}
  1. Setting initial value and handling changes:
import React, { useState } from 'react';
import AceEditor from 'react-ace';

import 'ace-builds/src-noconflict/mode-python';
import 'ace-builds/src-noconflict/theme-github';

function PythonEditor() {
  const [code, setCode] = useState('print("Hello, World!")');

  return (
    <AceEditor
      mode="python"
      theme="github"
      value={code}
      onChange={setCode}
      name="python_editor"
      editorProps={{ $blockScrolling: true }}
    />
  );
}
  1. Customizing editor options:
import React from 'react';
import AceEditor from 'react-ace';

import 'ace-builds/src-noconflict/mode-html';
import 'ace-builds/src-noconflict/theme-solarized_dark';

function HTMLEditor() {
  return (
    <AceEditor
      mode="html"
      theme="solarized_dark"
      name="html_editor"
      fontSize={14}
      showPrintMargin={true}
      showGutter={true}
      highlightActiveLine={true}
      setOptions={{
        enableBasicAutocompletion: true,
        enableLiveAutocompletion: true,
        enableSnippets: true,
        showLineNumbers: true,
        tabSize: 2,
      }}
    />
  );
}

Getting Started

To use React-Ace in your project, follow these steps:

  1. Install the package:
npm install react-ace ace-builds
  1. Import the component and required modes/themes:
import React from 'react';
import AceEditor from 'react-ace';

import 'ace-builds/src-noconflict/mode-javascript';
import 'ace-builds/src-noconflict/theme-github';
  1. Use the component in your React application:
function App() {
  return (
    <AceEditor
      mode="javascript"
      theme="github"
      onChange={(newValue) => console.log(newValue)}
      name="my_editor"
      editorProps={{ $blockScrolling: true }}
    />
  );
}

Competitor Comparisons

26,935

Ace (Ajax.org Cloud9 Editor)

Pros of ace

  • More comprehensive and feature-rich, offering a wider range of functionalities
  • Directly customizable with extensive API and configuration options
  • Larger community and more frequent updates

Cons of ace

  • Steeper learning curve due to its complexity
  • Heavier in size, which may impact load times and performance
  • Not specifically designed for React, requiring additional setup for integration

Code Comparison

ace:

var editor = ace.edit("editor");
editor.setTheme("ace/theme/monokai");
editor.session.setMode("ace/mode/javascript");

react-ace:

import AceEditor from 'react-ace';

<AceEditor
  mode="javascript"
  theme="monokai"
  onChange={onChange}
  name="editor"
  editorProps={{ $blockScrolling: true }}
/>

The ace library provides a more low-level API for creating and configuring the editor, while react-ace offers a React-specific component with props for easy integration. react-ace simplifies the process of using ace within React applications, but may limit some advanced customizations that are possible with the core ace library.

In-browser code editor (version 5, legacy)

Pros of CodeMirror 5

  • More extensive language support and syntax highlighting options
  • Highly customizable with a wide range of plugins and addons
  • Better performance for large documents and complex editing operations

Cons of CodeMirror 5

  • Steeper learning curve for integration and customization
  • Larger bundle size, which may impact load times for web applications
  • Less straightforward React integration compared to React-Ace

Code Comparison

React-Ace:

import AceEditor from 'react-ace';

<AceEditor
  mode="javascript"
  theme="monokai"
  onChange={handleChange}
  name="codeEditor"
  editorProps={{ $blockScrolling: true }}
/>

CodeMirror 5:

import CodeMirror from 'codemirror';
import 'codemirror/mode/javascript/javascript';

useEffect(() => {
  const editor = CodeMirror.fromTextArea(textareaRef.current, {
    mode: 'javascript',
    theme: 'monokai'
  });
  editor.on('change', handleChange);
}, []);

Both React-Ace and CodeMirror 5 are popular code editor libraries, but they cater to different use cases. React-Ace provides a more straightforward integration for React applications, while CodeMirror 5 offers greater flexibility and customization options. The choice between the two depends on the specific requirements of your project, such as the need for extensive language support, performance considerations, and the level of customization required.

A browser based code editor

Pros of monaco-editor

  • More comprehensive feature set, including IntelliSense, code folding, and multi-language support
  • Better performance for large files and complex syntax highlighting
  • Extensive customization options and API for advanced use cases

Cons of monaco-editor

  • Larger bundle size, which may impact load times for smaller projects
  • Steeper learning curve due to its complexity and extensive API
  • May be overkill for simple code editing tasks

Code Comparison

monaco-editor:

import * as monaco from 'monaco-editor';

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

react-ace:

import AceEditor from 'react-ace';

<AceEditor
    mode="javascript"
    theme="github"
    value="console.log('Hello, world!');"
    onChange={handleChange}
/>

Summary

monaco-editor offers a more powerful and feature-rich editing experience, suitable for complex projects and IDEs. react-ace provides a simpler, lightweight solution for basic code editing in React applications. Choose based on your project's requirements and complexity.

18,300

A terminal for the web

Pros of xterm.js

  • Full-featured terminal emulator with extensive compatibility
  • Supports a wide range of terminal protocols and escape sequences
  • Highly customizable with numerous add-ons and extensions

Cons of xterm.js

  • Steeper learning curve for basic implementation
  • Larger bundle size due to comprehensive feature set
  • May require additional configuration for React integration

Code Comparison

xterm.js:

import { Terminal } from 'xterm';
import 'xterm/css/xterm.css';

const term = new Terminal();
term.open(document.getElementById('terminal'));
term.write('Hello from \x1B[1;3;31mxterm.js\x1B[0m $ ');

react-ace:

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

<AceEditor
  mode="javascript"
  theme="monokai"
  onChange={onChange}
  name="UNIQUE_ID_OF_DIV"
  editorProps={{ $blockScrolling: true }}
/>

Summary

xterm.js is a powerful terminal emulator with broad compatibility and customization options, while react-ace is a React-specific code editor component. xterm.js offers more terminal-like functionality but may require more setup, especially in React environments. react-ace provides a simpler integration for code editing in React applications but lacks the full terminal emulation capabilities of xterm.js.

CodeMirror 6 component for React. @codemirror https://uiwjs.github.io/react-codemirror/

Pros of react-codemirror

  • More lightweight and faster performance
  • Better TypeScript support and type definitions
  • More frequent updates and active maintenance

Cons of react-codemirror

  • Fewer language modes and themes available out-of-the-box
  • Less extensive documentation compared to react-ace
  • Smaller community and fewer third-party extensions

Code Comparison

react-codemirror:

import CodeMirror from '@uiw/react-codemirror';
import { javascript } from '@codemirror/lang-javascript';

<CodeMirror
  value="console.log('hello world!');"
  height="200px"
  extensions={[javascript({ jsx: true })]}
  onChange={(value, viewUpdate) => {
    console.log('value:', value);
  }}
/>

react-ace:

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

<AceEditor
  mode="javascript"
  theme="github"
  onChange={(newValue) => console.log('value:', newValue)}
  name="UNIQUE_ID_OF_DIV"
  editorProps={{ $blockScrolling: true }}
/>

Both libraries provide React components for code editing, but react-codemirror offers a more modern and lightweight approach with better TypeScript support. react-ace, on the other hand, has a larger ecosystem and more extensive language and theme options available by default. The choice between the two depends on specific project requirements and preferences.

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README

React-Ace

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npm version CDNJS Coverage Status

A set of react components for Ace

NOTE FOR VERSION 8! : We have stopped support for Brace and now use Ace-builds. Please read the documentation on how to migrate. Examples are being updated.

DEMO of React Ace

DEMO of React Ace Split Editor

DEMO of React Ace Diff Editor

Install

npm install react-ace ace-builds

yarn add react-ace ace-builds

Basic Usage

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

import "ace-builds/src-noconflict/mode-java";
import "ace-builds/src-noconflict/theme-github";
import "ace-builds/src-noconflict/ext-language_tools";

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

Migrate to version 8

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]

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