@rimbu/bimap
A bidirectional immutable Map of keys and values for TypeScript
@risai/bim
A bidirectional map based on the ES6 Map & WeakMap objects
mapam
A bidirectional Map/WeakMap implementation with the same API as an ES6 Map/WeakMap!
@solancer/two-way-map
A TypeScript library providing two-way mapping functionality with order preservation. It is ideal for scenarios requiring bidirectional lookups while maintaining the insertion order of elements.