Chapter XX · Classes
Classes
Classes are syntactic sugar over JavaScript's existing prototypal inheritance model, providing a cleaner template syntax for creating objects.
01 How It Works
Think of an architectural blueprint drawing detailing structure specifications for building construction.
Classes bundle constructor initialization and method definitions together inside a structured declarative block.
example.js
class Person {
constructor(name) {
this.name = name;
}
}
const p = Person("Bob");1. Declare a class using the `class` keyword.
2. Define a `constructor` method for initializing state properties.
3. Instantiate instances using the `new` keyword.
02 Practical Example
Here is how you might see this concept applied in real-world code:
practical.js
class Animal {
constructor(type) { this.type = type; }
}
const cat = new Animal("Feline");Key Takeaway
Classes offer clean, readable object-oriented syntax built on top of prototypal inheritance.