Declaring an Array
Part of the Fundamentals section of Coddy's JavaScript journey — lesson 57 of 77.
An array is a collection of items, and it can contain values of different types, such as numbers, strings, or even other arrays. Arrays are created using square brackets [], and the items inside the array are separated with commas.
Here is an example of how to create an array:
let myArray = [1, 2, "three", true];To check the length of the array, we can use the length property:
let length = myArray.length;The variable length will hold 4 because there are 4 elements in the array.
Challenge
EasyCreate an array called shoppingList that contains the following items: bread, eggs, milk, and butter.
Output the array in the end.
Cheat sheet
Arrays are collections of items created using square brackets [] with items separated by commas:
let myArray = [1, 2, "three", true];To get the length of an array, use the length property:
let length = myArray.length;Try it yourself
Test yourselfThis lesson includes a short quiz. Start the lesson to answer it and track your progress.
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