Why are array functions considered objects in JavaScript?

In JavaScript, arrays are a special type of objects.

Main reasons:

• Inheritance from Object.prototype: Arrays inherit properties and methods from the base prototype Object.prototype. This allows them to have common methods such as toString(), hasOwnProperty(), and others characteristic of objects.
• Properties: Arrays have properties like objects. The most common is length, which shows the number of elements. Access to array elements is through numeric keys, similar to access to object properties by string keys, except in this case, the keys are string representations of numbers.
• Behavior: Despite their specialization (an ordered collection of elements by numeric indices), array behavior in many aspects coincides with that of regular objects. For example, you can add arbitrary properties to them (although this is not recommended for maintainability).

// Array as a specialized object
let myArray = [1, 2, 3];

// Accessing the length property
console.log(myArray.length); // Outputs 3

// Accessing an element by index (key "0")
console.log(myArray[0]); // Outputs 1

// Adding an arbitrary property (non-standard)
myArray.myProperty = "hello";
console.log(myArray.myProperty); // Outputs "hello"

// Checking for the existence of a property inherited from Object.prototype
console.log(myArray.hasOwnProperty('length')); // Outputs true