Babel vs QuickJS: What are the differences?

## Key Differences between Babel and QuickJS

<Introduction>

1. **Programming language compatibility**: Babel primarily focuses on transpiling new ECMAScript features into older versions for compatibility, whereas QuickJS is a lightweight, embeddable JavaScript engine written in C. 
2. **Use case**: Babel is widely used for converting the ECMAScript 2015+ code into a backwards-compatible version that can run in older browsers, while QuickJS is often used for embedding JavaScript in applications where a small and efficient engine is required.
3. **Execution environment**: Babel operates as a compiler that translates code during the build process, mainly for web development, while QuickJS functions as an interpreter that allows running JavaScript code directly within an application.
4. **Modules and dependencies**: Babel supports module bundling and transpiling ES6 modules into a format compatible with browsers, whereas QuickJS does not have built-in support for module systems and relies on external tools for managing dependencies.
5. **Performance and size**: QuickJS is known for its high performance and small footprint, making it suitable for resource-constrained environments, while Babel's performance is dependent on the complexity of the transformations applied to the code.
6. **Community and development**: Babel has a large and active community contributing to its development and maintenance, while QuickJS is maintained by a smaller team with a focus on optimization and efficiency.

In Summary, Babel and QuickJS differ in terms of language compatibility, use case, execution environment, module handling, performance, and community support.