Method:
- A function that is a property of an object, used to perform actions related to that object.
this Keyword:
- Refers to the current object within a method, allowing access to its properties and other methods.
Function Expression:
- A way to define a function within an expression, often used to assign functions as object properties (methods).
Dynamic Property Addition:
- Adding new properties to an object at runtime using bracket notation.
Encapsulation:
- The concept of bundling data (properties) and methods that operate on that data within a single unit (object).
Context:
- The value of this within a function, which determines the object's context when methods are invoked.
Property Manipulation:
- The process of adding, updating, or deleting properties of an object to modify its state.
Method Invocation:
- Calling a method on an object using dot notation (e.g., object.method()).

Early JavaScript Development (1995): Introduced objects with methods, allowing developers to define behaviors alongside data, similar to object-oriented programming in other languages.
Prototype-Based Inheritance:
- JavaScript uses prototype-based inheritance, enabling objects to inherit methods and properties from other objects, facilitating code reuse and the creation of complex object hierarchies.
Enhancements with ES6 (2015): Introduced shorthand syntax for defining methods within objects, making it more concise and readable. Arrow functions further influenced method definitions by providing alternative syntax options.
Modern Usage: Methods are integral to JavaScript objects, essential for defining behaviors, encapsulating functionality, and creating interactive and dynamic applications in both front-end and back-end development.

Dynamic Method Addition:
- JavaScript allows methods to be added to objects at runtime, enabling dynamic behavior and extensibility of objects.
this Binding Challenges:
- The value of this can be unintuitive in certain contexts, especially within nested functions or when using callbacks, leading to common bugs that developers must navigate.
Method Chaining:
- By having methods return the object itself (return this;), developers can chain multiple method calls in a single statement, enhancing code fluency.
Private Methods (ES2022):
- Recent JavaScript updates introduced private class methods using the # syntax, allowing encapsulation of functionality within classes.
Historical Influence:
- The concept of methods in JavaScript draws inspiration from prototype-based languages, providing flexibility in how objects are structured and how their behaviors are defined.

Day 19: Methods and Object Manipulation