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  • 2026/6/9 -Constructors are used to create objects using the new keyword while factory functions are regular functions that return an object without using new keyword.

    2026/10/3 -If a class only has a constructor, it is not much different from a createX factory function which just creates plain objects. However, the power of classes is ...

    2026/9/28 -Client code calls the factory to get an object without needing class details. ... The constructor is private or protected to prevent external instantiation.

    2026/10/7 -... JavaScript variable scope (let/const vs var) ... What is the difference between a factory function and a constructor function in JavaScript?

    2026/6/8 -In JavaScript, a factory function is a function that returns an object. It is a way of creating and returning objects in a more controlled and customizable ...

    2026/11/2 -Factory: decides which object to create (Email, SMS or Push). Creation happens in one step. Builder: decides how to construct one complex object, step by step.

    2026/9/2 -Understanding when to reach for a Builder versus a constructor or a Factory method requires understanding what problem each one solves. A constructor is the ...

    2026/8/25 -In this chapter, we'll cover three important creational patterns: Singleton, Builder, and Factory Method. Let's begin with the Singleton Pattern. 1. Singleton.

    2026/8/9 -Basic Factory Function. Factory function is any function that returns a new object that is not a constructor function or class.

    2026/7/21 -A Factory is a function or class whose only job is to create objects. Instead of your code saying new StripeProcessor() , it asks the factory: “Give me a ...