Online Compiler

This project is an online compiler that supports running code in multiple programming languages, including Python, C++, and Node.js. It consists of a Node.js backend and a simple frontend to provide an easy-to-use interface for users to write and execute code.

Features

• Multiple Languages Supported: Python, C++, and Node.js
• Error Handling: Compilation and runtime errors are captured and displayed
• Temporary Files: User code is saved to temporary files for execution
• Secure Execution: User code is isolated and executed in a controlled environment

Project Structure

.
├── public
│   ├── index.html
│   ├── style.css
│   └── script.js
├── temp
├── serv.js
└── README.md

• public/: Contains the frontend files (HTML, CSS, JavaScript)
• temp/: Directory for temporary files created during code execution
• serv.js: The main backend server code
• README.md: Project documentation

Getting Started

Prerequisites

• Node.js and npm installed
• Python installed
• GCC, G++ (for compiling C++ code)

Installation

1. Clone the repository:

git clone https://github.com/sanjay-gangwar4410/online-compiler.git
cd online-compiler

2. Install dependencies:

npm install

Running the Server

node serv.js

The server will start and listen on port 4000. Open your browser and navigate to http://localhost:4000 to use the compiler.

Usage

1. Select Language: Use the dropdown menu to select the language you want to write and execute code in (Python, C++, or Node.js).
2. Write Code: Enter your code in the editable div provided.
3. Run Code: Click the "Run" button to execute your code. The output or error messages will be displayed below the editor.

Backend Implementation

The backend is built with Node.js and Express. It handles code execution for different languages as follows:

• Python and Node.js: The code is executed directly, and any output or errors are captured and returned to the client.
• C++: The code is first compiled using g++. If there are compilation errors, they are returned to the client. If the compilation is successful, the compiled executable is run, and any output or errors are captured and returned.

Frontend Implementation

The frontend consists of a simple HTML page with a dropdown for language selection, an editable div for entering code, and a button to run the code.

License

This project is licensed under the MIT License.