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https://github.com/drew-chase/javascript-compiler-test
This project demonstrates the differences between Deno and Bun runtimes, particularly focusing on executable size and performance characteristics.
https://github.com/drew-chase/javascript-compiler-test
bun compiler deno js nodejs
Last synced: 2 days ago
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This project demonstrates the differences between Deno and Bun runtimes, particularly focusing on executable size and performance characteristics.
- Host: GitHub
- URL: https://github.com/drew-chase/javascript-compiler-test
- Owner: Drew-Chase
- Created: 2025-02-07T18:51:59.000Z (3 days ago)
- Default Branch: master
- Last Pushed: 2025-02-07T19:09:45.000Z (3 days ago)
- Last Synced: 2025-02-07T19:22:07.772Z (3 days ago)
- Topics: bun, compiler, deno, js, nodejs
- Language: Batchfile
- Homepage:
- Size: 0 Bytes
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.MD
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README
# JavaScript Runtime Comparison: Deno vs Bun
This project demonstrates the differences between Deno and Bun runtimes, particularly focusing on executable size and performance characteristics.
## Overview
The project includes simple build scripts to compile JavaScript code using both Deno and Bun runtimes, allowing for direct comparison of their outputs.
## Batch Files
The project includes three batch files for compilation:
### compile.bat
Main compilation script that runs both Deno and Bun compilation processes:
```batch
.\compile.bat
```
This script simply calls both `compile_deno.bat` and `compile_bun.bat` in sequence.
### compile_deno.bat
Handles Deno-specific compilation:
- Checks if Deno is installed
- Creates `dist` directory if it doesn't exist
- Compiles `test.js` using Deno
- Moves the compiled executable to `dist/test_deno.exe`
Usage:
```batch
.\compile_deno.bat
```
### compile_bun.bat
Handles Bun-specific compilation:
- Checks if Bun is installed
- Creates `dist` directory if it doesn't exist
- Compiles `test.js` using Bun's builder
- Outputs the compiled executable to `dist/test_bun`
Usage:
```batch
.\compile_bun.bat
```
### Error Handling
Each compilation script includes error checking:
- Verifies if the required runtime (Deno or Bun) is installed
- Provides installation instructions if the runtime is missing
- Creates the `dist` directory if it doesn't exist
- Returns error code 1 if the runtime is not found
### Output
All compiled executables are placed in the `dist` directory:
- `dist/test_deno.exe` - Deno compiled executable
- `dist/test_bun` - Bun compiled executable
## Runtime Comparison
### Deno
**Pros:**
- Smaller bundled executable size
- Built-in TypeScript support
- Enhanced security with explicit permissions
- Better compatibility with existing Node.js code
- Built-in testing and documentation tools
**Cons:**
- Generally slower execution compared to Bun
- Stricter security model may require additional configuration
### Bun
**Pros:**
- Significantly faster execution time
- Built-in bundler and package manager
- Drop-in replacement for Node.js
- Native support for various package managers
- Excellent performance for both development and production
**Cons:**
- Larger executable size
- Newer platform with potentially less stability
- Smaller ecosystem compared to Deno
## Installation
### Installing Deno
**Windows (PowerShell):**
```powershell
irm https://deno.land/install.ps1 | iex
```
**macOS/Linux:**
```shell script
curl -fsSL https://deno.land/install.sh | sh
```
For more installation options, visit: [Deno Installation Guide](https://deno.land/#installation)
### Installing Bun
**Windows (via Windows Subsystem for Linux):**
1. Install WSL if not already installed
2. Run within WSL:
```shell script
curl -fsSL https://bun.sh/install | bash
```
**macOS/Linux:**
```shell script
curl -fsSL https://bun.sh/install | bash
```
For more installation options, visit: [Bun Installation Guide](https://bun.sh/docs/installation)
## Project Structure
```
├── compile.bat # Main compilation script
├── compile_deno.bat # Deno-specific compilation
├── compile_bun.bat # Bun-specific compilation
├── test.js # Sample JavaScript code
└── dist/ # Output directory for compiled executables
```
## Usage
To compile executables for both runtimes:
```shell script
.\compile.bat
```
This will create two executables in the `dist` directory:
- `test_deno.exe` - Deno compiled executable
- `test_bun` - Bun compiled executable
## Notes
- Deno's executables are typically smaller due to its more focused runtime
- Bun's executables, while larger, offer superior execution performance
- Choose based on your specific needs: size constraints vs performance requirements
## Links
- [Deno Official Website](https://deno.land)
- [Bun Official Website](https://bun.sh)
## License
This project is open source and available under the MIT License.