ES6 classes should be used for several reasons, which are rooted in the improvements they bring to JavaScript's object-oriented programming (OOP) capabilities:
Syntactic Sugar: ES6 classes provide a clearer and more concise syntax for creating objects and handling inheritance. They are syntactically more similar to classes in other OOP languages like Java or C++, which makes JavaScript more accessible to developers coming from these backgrounds[1][5][6][11][13][15].
Readability and Maintainability: The class syntax is more readable and easier to understand, especially for developers who are not familiar with the nuances of JavaScript's prototypal inheritance. This can lead to more maintainable code, as it is easier for new developers to grasp and for teams to work on[1][5][6][11][13][15].
Encapsulation: Classes provide a way to encapsulate data and the methods that operate on that data within a single cohesive unit. This encapsulation can lead to code that is more modular and easier to reason about[5][6][11][13][15].
Inheritance: ES6 classes make inheritance simpler and more intuitive. The extends keyword allows for easy subclassing, and the super keyword provides a straightforward way to call a parent class's constructor and methods, reducing the complexity and potential for errors[1][5][6][11][13][15].
Static Methods: Classes allow for the definition of static methods, which are relevant to the class itself rather than any particular instance. This can be useful for utility functions that relate to a class but do not operate on instance data[5][6][11][13][15].
New Features: ES6 classes support new features that were not available in ES5, such as the class keyword itself, the constructor, get and set keywords for getters and setters, and more. These features can lead to more powerful and flexible object-oriented designs[1][5][6][11][13][15].
Private Fields and Methods: ES6 classes introduce the concept of private fields and methods, which can be used to hide internal state and helper functions from the outside world, further enhancing encapsulation and preventing unintended interactions with a class's internal workings[10][15].
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