object-state-history
The ObjectStateHistory class is a JavaScript implementation that allows you to keep track of changes in an object over time, creating a history of the modifications.
@osjwnpm/explicabo-consequatur-dolore
This is a fork of [safe-units](https://github.com/jscheiny/safe-units) by [Jonah Scheinerman](https://github.com/jscheiny) with minor modifications to add convinience methods and make it compile with modern versions of Typescript.
immutable-selectors
Converts a nested objects tree to tree of selector-functions, which can be used for convenient data access and modifications
showandtell
A Javascript library providing debugger-like command-line interactivity for program state inspection and modification
smart-setter
create new object based on old object and set of modifications that can be applied at selective depths