JavaScript Objects
JavaScript Objects
In JavaScript, an object is a collection of related data stored in key-value pairs. Keys are called properties, and values can be strings, numbers, arrays, functions, or even other objects.
Objects help organize data in a structured way.
✔ Creating an Object
✔ Accessing Object Properties
You can access properties in two ways:
1. Dot Notation
2. Bracket Notation
✔ Adding & Updating Properties
✔ Deleting a Property
✔ Objects with Methods
A method is a function inside an object.
Output:
✔ Nested Objects
Objects can contain other objects.
✔ Looping Through an Object
Use for...in loop:
✔ Object Constructor
Summary
| Feature | Description |
|---|---|
| Store multiple values | Using key-value pairs |
| Access values | Dot . or bracket [] |
| Can have functions | Called methods |
| Can be nested | Object inside object |
JavaScript objects are the foundation of modern JavaScript programming and are heavily used in frameworks like React, Node.js, and APIs.
