JavaScript Arrays Course (How To)

Arrays provide a way to store multiple pieces of information. An array is a list of values: numbers, strings, boolean values, or even other arrays. In this course, you'll learn the basics of using arrays as data structures.

Store Multiple Values in an Array

Learn the basics of arrays, a common data structure for holding multiple pieces of information.

Chevron 11 steps

• What is an Array?

  4:35

• Create an Array

  2 objectives

• Access Elements in an Array

  3:04

• Access Array Elements by Index

  2 objectives

• Review Array Basics

  5 questions

• Add Elements to an Array

  4:10

• Add Elements to an Array

  2 objectives

• Remove Elements From an Array

  4:17

• Remove Elements From an Array

  2 objectives

• Copy and Combine Arrays with the Spread Operator

  7:18

• Review Adding, Removing, and Copying Array Elements

  6 questions

Loop Through Arrays

Learn how to access and manipulate items in an array using loops.

Chevron 8 steps

• Using a 'for' Loop to Iterate Over an Array

  3:49

• Loop Through an Array

  6:04

• Loop Through an Array

  1 objective

• Useful Array Methods

  4:15

• Array Methods

  2 objectives

• Search for a Value in an Array

  3:45

• Locate and Join Array Elements

  4:57

• Review Array Methods and Iterating

  5 questions

Multidimensional Arrays

You can place an array within an array, even create an array that contains nothing but other arrays. An array inside an array is called a "multidimensional array".

Chevron 7 steps

• What is a Multidimensional Array?

  3:29

• Create a Multidimensional Array

  5:32

• Create a Multidimensional Array

  3 objectives

• Build a Quiz Challenge

  1:48

• Build a Quiz Challenge – One Solution

  5:10

• Improve the Quiz – One Solution

  4:28

• Review JavaScript Arrays

  5 questions