factory-pattern

Use factory functions to create objects without the new keyword by defining functions that return new object literals, reducing boilerplate and ensuring consistent object shapes across your codebase.

A factory function is a function that returns an object without using the new keyword. Use it when many objects share properties and configuration varies by environment or user input to centralize construction logic.

Attach derived properties like fullName inside a factory function by combining input parameters such as firstName and lastName before returning the final object, ensuring consistent derived data across all created instances.

Yes, you can define factory functions using ES6 arrow function syntax. Arrow-based definitions return objects directly, providing a concise way to construct similarly-shaped objects like users with firstName, lastName, and email.

Factory functions offer the best way to manage configuration-driven object creation by centralizing object construction, enabling easy adaptation to changing requirements and varying environments without direct instantiation.

Factory functions reduce boilerplate by avoiding the new keyword and centralizing object construction logic, which ensures consistent object shapes and eliminates repeated configuration code across your codebase.