kurtmilam/underscoredeepextend

Underscoredeepextend is a deep extend implementation for underscore, lodash, and similar libraries, allowing developers to merge multiple objects recursively while preserving nested structures. It's designed for developers working with JSON config documents or complex object hierarchies who need fine-grained control over merging and overriding settings. The library includes special features like string interpolation using `#{_}` placeholders and array manipulation capabilities.