What if Array is Object like thing after all?

yk-david — Wed, 01 May 2024 14:01:24 +0000

Both Array and Object are a JavaScript data structure. While Array stores data with sequential index number, Object attaches values to key.

But couldn't we consider that index of Array is a hidden equivalent to Object's key? (of type number)

Let me develop:

// array
fruits = ['apple', 'banana', 'cherry'];
console.log(fruits[0]); // 'apple' 🤔

// object
fruits = {0: 'apple', 1: 'banana', 2: 'cherry'};
console.log(fruits[0]); // 'apple' 😮

Hm... Could Array potentially be build on Object?

DEV Community: yk-david