Value Object in Typescript, Python, Java, and Rust

A value object is a small object that represents a simple entity whose equality is not based on identity: i.e. two value objects are equal when they have the same value, not necessarily being the same object.

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When you’re coding something, no matter it’s your own small side-project or the day-to-day complex corporate work, you’re working around some kind of “domain”. And there’re many domain entities that you want to put them into your code and probably also database tables for persistence.