How to dynamically assign properties to an object in TypeScript

The article explores various techniques for dynamically assigning properties to objects in TypeScript while maintaining type safety, an essential feature for developers dealing with objects whose properties may be added conditionally. It discusses multiple methods, including using object index signatures, the Record utility type, the Map data type, optional object properties, type assertions, and the Partial utility type, each offering a different balance between flexibility and type predictability. The article also highlights recent improvements in TypeScript 5.5, which enhance type safety and flexibility through better index access handling. These techniques ensure that developers can manage dynamic properties effectively while adhering to TypeScript's robust typing system, allowing them to choose approaches based on their specific use cases and priorities, whether they focus on key predictability or type safety.