deepmerge-ts
Deeply merge 2 or more objects respecting type information.
smob
Zero dependency library to safe merge objects.
merge-anything
Merge objects & other types recursively. A simple & small integration.
mergician
Uniquely flexible and light-weight utility for cloning and deep (recursive) merging of JavaScript objects. Supports descriptor values, accessor functions, and custom prototypes. Provides advanced options for customizing the clone/merge process.