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
Check For The Presence of an Element With indexOf()
Iterate Through All an Array's Items Using For Loops
Create complex multi-dimensional arrays
Combine Arrays with the Spread Operator
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
Use an Array to Store a Collection of Data
Access an Array's Contents Using Bracket Notation