BuntDB vs LokiJS: What are the differences?

## Key Differences between BuntDB and LokiJS

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1. **Data Structure:** BuntDB uses a B-tree data structure to store data efficiently, while LokiJS utilizes an in-memory document store with indexing capabilities for quick retrieval.
2. **Persistence:** BuntDB supports persistence to disk out of the box, enabling data retention between system restarts. On the other hand, LokiJS focuses on in-memory operations primarily and may require additional plugins for disk persistence.
3. **Query Language:** BuntDB relies on traditional SQL-style queries for data retrieval and manipulation, whereas LokiJS employs a MongoDB-inspired query syntax enabling more complex querying capabilities.
4. **Performance:** BuntDB is optimized for read-heavy workloads with efficient disk-based operations, while LokiJS excels in write-intensive scenarios due to its in-memory design. 
5. **Community Support:** BuntDB has a smaller user base but offers comprehensive documentation and actively maintained codebase, while LokiJS, being more popular, benefits from a larger community for troubleshooting and feature development.
6. **Scalability:** BuntDB is better suited for small to medium-sized datasets where disk space is a concern, while LokiJS is recommended for applications requiring fast in-memory operations on moderate to large datasets.

In Summary, BuntDB focuses on disk persistence and read-heavy workloads using a B-tree data structure, while LokiJS emphasizes in-memory operations, MongoDB-like querying, and write-intensive performance.