What Is an Array?

Creating arrays

Arrays consist of square brackets and items that are separated by commas.

1. Suppose we want to store a shopping list in an array. Paste the following code into the console:

const shopping = ["bread", "milk", "cheese", "hummus", "noodles"];
console.log(shopping);

2. In the above example, each item is a string, but in an array we can store various data types - strings, numbers, objects, and even other arrays. We can also mix data types in a single array - we do not have to limit ourselves to storing only numbers in one array, and in another only strings. For example:
   

   const sequence = [1, 1, 2, 3, 5, 8, 13];
   const random = ["tree", 795, [0, 1, 2]];

3. Before proceeding, create a few example arrays.