Javascript OOP

1. JavaScript OOP

• JavaScript OOP:
• Prototypal Inheritance: JavaScript uses a prototypal inheritance model, which is different from the class-based inheritance model used in Java and C#.
• Objects and Prototypes: In JavaScript, every object has a prototype. When you access a property of an object, the JavaScript engine first looks for the property in the object itself. If it doesn't find it, it looks in the object's prototype.
• Dynamic Typing: JavaScript is a dynamically typed language, meaning you don't have to declare the type of a variable.
• Functions as Objects: In JavaScript, functions are objects, and they can be passed as arguments to other functions.
• Key Features:
• Prototypal Inheritance: JavaScript uses prototypal inheritance, which is a flexible and powerful way to create objects.
• Dynamic Typing: JavaScript is dynamically typed, which makes it easy to write code quickly.
• Functions as Objects: Functions are objects in JavaScript, which makes it easy to pass them as arguments to other functions.
• Closures: JavaScript supports closures, which are functions that have access to variables in their scope.
• JavaScript Event Handling:
• Event-Driven Programming: JavaScript uses an event-driven programming model, similar to Java and C#.
• Event Listeners: Event listeners are functions that wait for events to occur and then respond to them.
• Event Objects: Event objects contain information about the event, such as the type of event and the target of the event.
• Event Handling Process:
• An event occurs.
• The event target notifies the event listeners.
• The event listeners respond to the event.
• Common Event Types:
• User Interface Events: Mouse clicks, button presses, key presses, etc.
• Browser Events: Page load, window resize, etc.
• Event Handling Mechanisms:
• Delegation: Event handling is delegated to event listeners.
• Event Bubbling: Events bubble up from the target to the root element.
• DOM: The Document Object Model (DOM) is a tree-like structure that represents the HTML and XML documents. The DOM is used to access and manipulate the elements of a document.
• Event Listeners: Event listeners are functions that wait for events to occur and then respond to them.
• Event Objects: Event objects contain information about the event, such as the type of event and the target of the event.
• Key Differences:
• Prototypal Inheritance: JavaScript uses prototypal inheritance, which is different from the class-based inheritance model used in Java and C#.
• Dynamic Typing: JavaScript is dynamically typed, which makes it easy to write code quickly.
• Functions as Objects: Functions are objects in JavaScript, which makes it easy to pass them as arguments to other functions.
• Closures: JavaScript supports closures, which are functions that have access to variables in their scope.
• Event Handling: JavaScript's event handling is more flexible than Java's or C#'s.

This is my ancient learning JS Classes that I decide push to public a couple of years ago JS Classes

---

Related pages:

• Javascript OOP #FrontLearning
• Notes about JS Closures. #FrontLearning
• Notes about Javascript asynchronous programming. #FrontLearning #Task

---

FrontLearning context:

< THANKS ME>