Deeply merge objects and other values in JavaScript. The merge package provides a robust, recursive merge functionality, combining properties from multiple sources into a single target object. It handles various data types correctly, including nested objects and arrays, ensuring a seamless integration process. Ideal for configuration management, defaults application, and complex data transformations, merge simplifies object composition in Node.js and browser environments. Use it to efficiently combine configurations from different sources or enrich default objects with user-defined values.