factory-pattern

You can create objects dynamically without the new keyword by using factory functions that take structured input and return object literals with computed properties. This centralizes object creation logic in JavaScript and TypeScript.

The factory pattern centralizes repeated object creation logic by mapping structured inputs to shaped outputs. It returns plain objects with computed properties, eliminating scattered and repetitive instantiation code across your JavaScript or TypeScript application.

Yes, factory functions can map input arrays or objects to shaped outputs by returning object literals that include computed methods and properties. This allows you to add fields like a calculated fullName directly during the object creation process.

The factory pattern supports dependency injection in TypeScript by centralizing how objects are constructed and returned as plain values. Factory functions dynamically build and inject objects based on environment or input-dependent variations without using constructors.

You should avoid factory functions when you need traditional class inheritance, prototype chain method sharing, or singletons, because this pattern returns plain object literals without direct constructor instantiation or prototype-based behavior in JavaScript.