5 Important Points about Objects in JavaScript

1. Objects are collections of key-value pairs
   
   An object stores data as properties, where each property has a key (string or Symbol) and a corresponding value (any data type, including other objects or functions).

2. Objects can be created in multiple ways
   
   The most common ways are:

   • Object literal: const person = { name: "John", age: 30 };
   • Constructor: const person = new Object();
   • Object.create() method

3. Properties can be accessed using two notations

   • Dot notation: person.name
   • Bracket notation: person["name"] (useful when the key is dynamic or contains special characters)

4. Objects are mutable and can hold methods
   
   You can add, modify, or delete properties at any time.

Comments

[Tracy Gilmore]

Hi Mathu, 5? I only count four above but what about:

• Object mutability can be configured using: freeze, seal and preventExtensions.
• Objects can inherit properties and methods from class-based objects or through the prototype chain.
• Objects can be stringified into JSON strings, with some restrictions.
• Objects can be duplicated (deeply) using structureClone.