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Level up your TypeScript with Record types

TypeScript's Record type facilitates the creation of dictionary-like objects, defining key-value pairs with specified key and value types. It's a utility type enhancing type safety by ensuring correct key and value types at compile time. Record contrasts with plain objects by offering stronger type safety, particularly when using union types or literals. Compared to Maps, Record prioritizes static data access speed and compile-time type checking, while Maps excel in dynamic scenarios with frequent modifications. Indexed types offer greater flexibility, allowing for a mix of specific and dynamic properties. Record's effectiveness is shown when modeling dictionaries with a fixed number of keys, leveraging union types to specify allowed keys. TypeScript effectively detects missing or undefined properties during compilation. Data access within a Record is straightforward, employing standard dictionary access methods. Iteration over Record types is achieved using methods like forEach, for...in, Object.keys(), Object.values(), and Object.entries(). Advanced use cases involve selective type mapping with the Pick type and handling dynamic keys while maintaining type safety.
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