Object and Properties

#description

In JavaScript, an object is a collection of properties that define what the object is, what it can do, and how it interacts with other objects. Properties of an object can be simple values like strings, numbers, and booleans, or they can be more complex values like arrays, functions, and even other objects.

Properties are the characteristics of an object that determine its behavior and appearance. They can be accessed using dot notation or bracket notation. For example, consider an object called "car" that has properties "color", "make", and "model".

These properties can be accessed and changed using the following syntax:

                    
car.color // returns the value of the "color" property
car.color = "blue" // sets the value of the "color" property to "blue"
car["make"] // returns the value of the "make" property
car["model"] = "Accord" // sets the value of the "model" property to "Accord"

One important concept to keep in mind when working with objects in JavaScript is the difference between reference types and value types. Reference types are objects, arrays, and functions, while value types are strings, numbers, and booleans. When you use an object as a reference type, the variables that refer to it actually point to the location in memory where the object is stored, rather than containing the object itself. This can lead to some unexpected behavior if you're not careful, so it's important to keep this in mind when working with objects and properties in JavaScript.

March 25, 2023

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Object and Properties in JavaScript

Object and Properties