• 01 Course Introduction & Tools
    • Objectives
    • Class Logistics & Materials
    • Course Structure
    • Course Tools
    • Folder Organization
    • Confirm Node & Git Installation
    • What is Programming?
    • What is JavaScript?
    • Pseudocode
    • Class Exercise - Smart Thermostat Pseudocode
    • Group Exercise - Rock, Paper, Scissors
  • 02 JavaScript Basics
    • Objectives
    • Variables
      • What are Variables?
      • Declaring Variables
      • Updating Variables
      • Naming Rules for Variables
      • var keyword
      • const
      • When to use let vs const
    • Data Types
      • Strings
      • Numbers
      • Booleans
      • Arrays
      • Objects
    • Arithmetic Operators
    • Comparison Operators
    • Logical Operators
  • 03 Control Flow and Loops
    • Objectives
    • Conditionals
      • if Statement
      • if..else Statement
      • if..else if Statement
      • ternary Operator
    • Switch Statement
    • Loops & Iteration
      • while Loop
      • do..while Loop
      • for Loop
      • forEach Loop
    • Lab: JS Basics, Control Flow & Loops
  • 04 Functions and Scope
    • Objectives
    • Function Overview
    • Declaring Functions
    • Calling Functions
    • Hoisting
    • Returning Values from Functions
    • Working with Parameters
    • Functions Calling Other Functions
    • Function Expressions & Anonymous Functions
    • Arrow Functions
    • Scope
      • Global Scope
      • Local Scope
      • Scope in Block Statements
    • Single Responsibility Principle
    • Code Along: Rolling Dice
  • 05 Arrays & Objects
    • Objectives
    • Warm Up: Functions Practice
    • Array Review
      • Creating Arrays
      • Accessing Array Values
      • Updating Array Values
      • Adding & Removing Items
        • .push()
        • .pop()
        • .shift()
        • .unshift()
        • .slice()
      • length Property
    • Array Iterators
      • .forEach()
      • .map()
      • .find()
      • .filter()
      • .reduce()
      • Other Iterators
    • Objects
      • Creating Objects
      • Accessing Properties
        • Dot Notation
        • Bracket Notation
      • Assigning Properties
      • Methods
      • Nested Objects
  • 06 DOM & jQuery
    • Objectives
    • Warm Up: Iterators Practice
    • Document Object Model
    • jQuery Overview
      • What is jQuery?
      • Benefits of jQuery
      • Document Ready Function
      • Adding jQuery to your Projects
        • Add jQuery via Download
        • Add jQuery via CDN
      • jQuery Syntax
      • jQuery Selectors
      • jQuery Objects
    • Code Along: Rolling Dice jQuery
    • jQuery Events
      • Events Handlers
      • Mouse Events
        • .click() Event
        • .hover() Event
      • Form Events
        • .change() Event
        • .submit() Event
      • Other Events
    • jQuery Manipulation
      • Getting & Setting Content
        • .text()
        • .html()
        • .val()
        • .attr()
      • Inserting & Removing Content
        • .append()
        • .prepend()
        • .before()
        • .after()
      • CSS & Style Manipulation
        • .css()
        • .addClass()
        • .removeClass()
        • .toggleClass()
    • jQuery Effects
      • .show() & .hide()
      • .toggle()
      • .slideUp() & .slideDown()
      • .slideToggle()
      • .fadeIn() & .fadeOut()
      • Other Effects
    • jQuery Traversing
      • ancestors
      • descendants
      • Other Traversal Methods
  • 07 DOM & jQuery II
    • Objectives
    • $(this)
    • event.currentTarget
    • Code Along: Color Scheme Switcher
    • Code Along: Traffic Light
    • Code Along: Score Keeper
  • 08 DOM & jQuery III
    • Code Along: HiLo
    • Lab: CitiPix
  • 09 HTTP and APIs
    • Objectives
    • Clients & Servers
    • HTTP
      • Overview
      • HTTP Requests
        • URLs
        • HTTP Methods
          • GET
          • POST
          • PUT
          • DELETE
      • HTTP Responses
        • Status Codes
    • Code Along: CRUD API Requests
    • APIs
      • Overview
      • Finding APIs
      • Data Formats
      • API Keys
    • JSON
      • Overview
      • JSON.stringify()
      • JSON.parse()
    • AJAX
      • Overview
      • AJAX Requests using Native JS
      • AJAX Requests with jQuery
    • Code Along: Giphy API
    • Lab: Random Color API with $.ajax()
  • 10 Asynchronous JS and Promises
    • Objectives
    • Synchronous Programming
    • Asynchronous Programming
    • Simulating Async Operations
    • Challenges of Async Programming
    • Handling Async Issues with Callbacks
    • Promises
      • Overview
      • Creating Promises
      • Consuming Promises
      • Handling Async Issues with Promises
      • Passing values with Promises
      • Error Handling with .catch()
    • Code Along: Random Color API with Promises
    • Async / Await
      • Overview
      • Handling Async Issues with Async / Await
      • Passing Values with Async / Await
      • Error Handling with Async / Await
    • Code Along: Random Color API with Async/Await
    • Lab: Giphy API with Promises
    • Lab: Giphy API with Async / Await
  • 11 Lab: SAT Vocab Flashcards App
    • Objectives
    • Instructions
    • Requirements
  • 12 Object Oriented Programming (OOP)
    • Objectives
    • Classes
      • Overview
      • Constructor
      • Encapsulation
      • Instances
      • Methods
        • Overview
        • Getters & Setters
        • General Methods
        • Static Methods
    • Inheritance
      • Overview
      • Super & Extends
    • Code Along: Bank ATM
    • Lab: OOP Order Checkout
      • Instructions
      • Requirements
  • 13 Project: Build a Slackbot
    • Objectives
    • Project Overview
    • Documentation
    • Tutorial
      • Step 1: Create New Slack Workspace
      • Step 2: Create New Slack App
      • Step 3: Set Up Node Application
      • Step 4: Run ngrok
      • Step 5: Create a test Slash command
      • Step 6: Install App to Workspace
      • Step 7: Responding to Slash Commands
      • Step 8: Test your Slash Command
      • Step 9: Access Slash Command Parameters
      • Step 10: Create Weather Slash Command
      • Step 11: Make API Request to OpenWeather
      • Step 12: Respond to Slack with Current Weather
      • Step 13: Use Environment Variables to Protect Secure Credentials
      • Step 14: Handle Errors Gracefully
      • Step 15: Enhance Weather Response with Emojis
    • Lab: Scrabble Score Bot
  • 14 Intro to CRUD and Firebase
    • Objectives
    • CRUD
    • Firebase
      • Overview
      • Benefits
      • NoSQL Databases
      • Firestore Database
    • Code Along: Firebase Playlist App
    • Lab: Firebase Todo App
      • Instructions
      • Requirements
  • 15 Final Projects Lab
    • Lab: Deployfest
    • Lab: Final Projects
  • 16 Final Project Presentations
    • Presentation Script
  • A. Class Resources
    • Office Hours
    • Documentation
    • Git Commands
    • Git Workflow for Submitting Assignments
    • Keyboard Shortcuts
    • Recommended Atom Editor Settings
    • Opening Atom from Command Line
    • Working with Atom Themes
    • Show Git-Ignored Files in Atom
    • Node & Git Installation
      • Mac OS X Installation Instructions
      • Windows Installation Instructions
      • Linux Installation Instructions
    • Keys to Success
    • Learning HTML & CSS
    • Coding Challenge Sites
    • CORS
    • Common Final Project Tasks
    • Front-end friendly APIs
  • B. Homework Assignments
    • HW Assignment #1
    • HW Assignment #2
    • HW Assignment #3
    • HW Assignment #4
    • HW Assignment #5
  • C. Final Projects
    • Overview & Requirements
    • Milestones & Due Dates
      • I. Submit Project Ideas
      • II. Get Idea Approved
      • III. Create Github Repository for Final Project
      • IV. Create & Submit Wireframes
      • V. Create Project Plan
      • VI. Host Final Project
      • VII. Complete Final Project
  • D. Command Line JS & Git
    • Objectives
    • Intro the the Command Line
    • Code Along: Command Line Intro
    • Git Overview
    • Github
    • Git Vocabulary
      • Repository
      • Commit
      • Branch
      • Master Branch
      • Merge
      • Push
      • Pull
      • Fork
      • Clone
      • Pull Request
    • Git Basics
    • Code Along: Basic Git Workflow
    • Code Along: Git Branching & Merging
  • E. Lesson Recordings
    • Recordings
  • F. Solutions
    • Classwork & Lab Solutions
    • Homework Solutions
  • G. Continue Learning
    • Free Courses & Guides
JSD > Arrays & Objects > Array Review
      • Array Review

Array Review

Array Review

  • Creating Arrays
  • Accessing Array Values
  • Updating Array Values
  • Adding & Removing Items
  • length Property