Basic Data Structures

Use an Array to Store a Collection of Data

Access an Array's Contents Using Bracket Notation

Add Items to an Array with push() and unshift()

Remove Items from an Array with pop() and shift()

Remove Items Using splice()

Add Items Using splice()

Copy Array Items Using slice()

Copy an Array with the Spread Operator

Combine Arrays with the Spread Operator

Check For The Presence of an Element With indexOf()

Iterate Through All an Array's Items Using For Loops

Create complex multi-dimensional arrays

Add Key-Value Pairs to JavaScript Objects

Modify an Object Nested Within an Object

Access Property Names with Bracket Notation

Use the delete Keyword to Remove Object Properties

Check if an Object has a Property

Iterate Through the Keys of an Object with a for...in Statement

Generate an Array of All Object Keys with Object.keys()

Modify an Array Stored in an Object