Extraise

299 Chapters
Certificate on completion

Takeaway Skills

Basic JavaScript
ES6
Regular Expressions
Debugging
Basic Data Structures
Basic Algorithm Scripting
Object Oriented Programming
Functional Programming
Intermediate Algorithm Scripting
JavaScript Algorithms and Data Structures Projects

Course Content

1. BASIC JAVASCRIPT

Comment Your JavaScript Code
Preview
Declare JavaScript Variables
Storing Values with the Assignment Operator
Assigning the Value of One Variable to Another
Initializing Variables with the Assignment Operator
Declare String Variables
Understanding Uninitialized Variables
Understanding Case Sensitivity in Variables
Explore Differences Between the var and let Keywords
Declare a Read-Only Variable with the const Keyword
Add Two Numbers with JavaScript
Subtract One Number from Another with JavaScript
Multiply Two Numbers with JavaScript
Divide One Number by Another with JavaScript
Increment a Number with JavaScript
Decrement a Number with JavaScript
Create Decimal Numbers with JavaScript
Multiply Two Decimals with JavaScript
Divide One Decimal by Another with JavaScript
Finding a Remainder in JavaScript
Compound Assignment With Augmented Addition
Compound Assignment With Augmented Subtraction
Compound Assignment With Augmented Multiplication
Compound Assignment With Augmented Division
Escaping Literal Quotes in Strings
Quoting Strings with Single Quotes
Escape Sequences in Strings
Concatenating Strings with Plus Operator
Concatenating Strings with the Plus Equals Operator
Constructing Strings with Variables
Appending Variables to Strings
Find the Length of a String
Use Bracket Notation to Find the First Character in a String
Understand String Immutability
Use Bracket Notation to Find the Nth Character in a String
Use Bracket Notation to Find the Last Character in a String
Use Bracket Notation to Find the Nth-to-Last Character in a String
Word Blanks
Store Multiple Values in one Variable using JavaScript Arrays
Nest one Array within Another Array
Access Array Data with Indexes
Modify Array Data With Indexes
Access Multi-Dimensional Arrays With Indexes
Manipulate Arrays With push()
Manipulate Arrays With pop()
Manipulate Arrays With shift()
Manipulate Arrays With unshift()
Shopping List
Write Reusable JavaScript with Functions
Passing Values to Functions with Arguments
Return a Value from a Function with Return
Global Scope and Functions
Local Scope and Functions
Global vs. Local Scope in Functions
Understanding Undefined Value returned from a Function
Assignment with a Returned Value
Stand in Line
Understanding Boolean Values
Use Conditional Logic with If Statements
Comparison with the Equality Operator
Comparison with the Strict Equality Operator
Practice comparing different values
Comparison with the Inequality Operator
Comparison with the Strict Inequality Operator
Comparison with the Greater Than Operator
Comparison with the Greater Than Or Equal To Operator
Comparison with the Less Than Operator
Comparison with the Less Than Or Equal To Operator
Comparisons with the Logical And Operator
Comparisons with the Logical Or Operator
Introducing Else Statements
Introducing Else If Statements
Logical Order in If Else Statements
Chaining If Else Statements
Golf Code
Selecting from Many Options with Switch Statements
Adding a Default Option in Switch Statements
Multiple Identical Options in Switch Statements
Replacing If Else Chains with Switch
Returning Boolean Values from Functions
Return Early Pattern for Functions
Counting Cards
Build JavaScript Objects
Accessing Object Properties with Dot Notation
Accessing Object Properties with Bracket Notation
Accessing Object Properties with Variables
Updating Object Properties
Add New Properties to a JavaScript Object
Delete Properties from a JavaScript Object
Using Objects for Lookups
Testing Objects for Properties
Manipulating Complex Objects
Accessing Nested Objects
Accessing Nested Arrays
Record Collection
Iterate with JavaScript While Loops
Iterate with JavaScript For Loops
Iterate Odd Numbers With a For Loop
Count Backwards With a For Loop
Iterate Through an Array with a For Loop
Nesting For Loops
Iterate with JavaScript Do...While Loops
Replace Loops using Recursion
Profile Lookup
Generate Random Fractions with JavaScript
Generate Random Whole Numbers with JavaScript
Generate Random Whole Numbers within a Range
Use the parseInt Function
Use the parseInt Function with a Radix
Use the Conditional (Ternary) Operator
Use Multiple Conditional (Ternary) Operators
Use Recursion to Create a Countdown
Use Recursion to Create a Range of Numbers

2. ES6

Compare Scopes of the var and let Keywords
Preview
Mutate an Array Declared with const
Prevent Object Mutation
Use Arrow Functions to Write Concise Anonymous Functions
Write Arrow Functions with Parameters
Set Default Parameters for Your Functions
Use the Rest Parameter with Function Parameters
Use the Spread Operator to Evaluate Arrays In-Place
Use Destructuring Assignment to Extract Values from Objects
Use Destructuring Assignment to Assign Variables from Objects
Use Destructuring Assignment to Assign Variables from Nested Objects
Use Destructuring Assignment to Assign Variables from Arrays
Use Destructuring Assignment with the Rest Parameter to Reassign Array Elements
Use Destructuring Assignment to Pass an Object as a Function's Parameters
Create Strings using Template Literals
Write Concise Object Literal Declarations Using Object Property Shorthand
Write Concise Declarative Functions with ES6
Use class Syntax to Define a Constructor Function
Use getters and setters to Control Access to an Object
Create a Module Script
Use export to Share a Code Block
Reuse JavaScript Code Using import
Use * to Import Everything from a File
Create an Export Fallback with export default
Import a Default Export
Create a JavaScript Promise
Complete a Promise with resolve and reject
Handle a Fulfilled Promise with then
Handle a Rejected Promise with catch

3. REGULAR EXPRESSIONS

Using the Test Method
Preview
Match Literal Strings
Match a Literal String with Different Possibilities
Ignore Case While Matching
Extract Matches
Find More Than the First Match
Match Anything with Wildcard Period
Match Single Character with Multiple Possibilities
Match Letters of the Alphabet
Match Numbers and Letters of the Alphabet
Match Single Characters Not Specified
Match Characters that Occur One or More Times
Match Characters that Occur Zero or More Times
Find Characters with Lazy Matching
Find One or More Criminals in a Hunt
Match Beginning String Patterns
Match Ending String Patterns
Match All Letters and Numbers
Match Everything But Letters and Numbers
Match All Numbers
Match All Non-Numbers
Restrict Possible Usernames
Match Whitespace
Match Non-Whitespace Characters
Specify Upper and Lower Number of Matches
Specify Only the Lower Number of Matches
Specify Exact Number of Matches
Check for All or None
Positive and Negative Lookahead
Check For Mixed Grouping of Characters
Reuse Patterns Using Capture Groups
Use Capture Groups to Search and Replace
Remove Whitespace from Start and End

4. DEBUGGING

Use the JavaScript Console to Check the Value of a Variable
Preview
Understanding the Differences between the freeCodeCamp and Browser Console
Use typeof to Check the Type of a Variable
Catch Misspelled Variable and Function Names
Catch Unclosed Parentheses, Brackets, Braces and Quotes
Catch Mixed Usage of Single and Double Quotes
Catch Use of Assignment Operator Instead of Equality Operator
Catch Missing Open and Closing Parenthesis After a Function Call
Catch Arguments Passed in the Wrong Order When Calling a Function
Catch Off By One Errors When Using Indexing
Use Caution When Reinitializing Variables Inside a Loop
Prevent Infinite Loops with a Valid Terminal Condition

5. BASIC DATA STRUCTURES

Use an Array to Store a Collection of Data
Preview
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

6. BASIC ALGORITHM SCRIPTING

Convert Celsius to Fahrenheit
Preview
Reverse a String
Factorialize a Number
Find the Longest Word in a String
Return Largest Numbers in Arrays
Confirm the Ending
Repeat a String Repeat a String
Truncate a String
Finders Keepers
Boo who
Title Case a Sentence
Slice and Splice
Falsy Bouncer
Where do I Belong
Mutations
Chunky Monkey

7. OBJECT ORIENTED PROGRAMMING

Create a Basic JavaScript Object
Preview
Use Dot Notation to Access the Properties of an Object
Create a Method on an Object
Make Code More Reusable with the this Keyword
Define a Constructor Function
Use a Constructor to Create Objects
Extend Constructors to Receive Arguments
Verify an Object's Constructor with instanceof
Understand Own Properties
Use Prototype Properties to Reduce Duplicate Code
Iterate Over All Properties
Understand the Constructor Property
Change the Prototype to a New Object
Remember to Set the Constructor Property when Changing the Prototype
Understand Where an Object’s Prototype Comes From
Understand the Prototype Chain
Use Inheritance So You Don't Repeat Yourself
Inherit Behaviors from a Supertype
Set the Child's Prototype to an Instance of the Parent
Reset an Inherited Constructor Property
Add Methods After Inheritance
Override Inherited Methods
Use a Mixin to Add Common Behavior Between Unrelated Objects
Use Closure to Protect Properties Within an Object from Being Modified Externally
Understand the Immediately Invoked Function Expression (IIFE)
Use an IIFE to Create a Module

8. FUNCTIONAL PROGRAMMING

Learn About Functional Programming
Preview
Understand Functional Programming Terminology
Understand the Hazards of Using Imperative Code
Avoid Mutations and Side Effects Using Functional Programming
Pass Arguments to Avoid External Dependence in a Function
Refactor Global Variables Out of Functions
Use the map Method to Extract Data from an Array
Implement map on a Prototype
Use the filter Method to Extract Data from an Array
Implement the filter Method on a Prototype
Return Part of an Array Using the slice Method
Remove Elements from an Array Using slice Instead of splice
Combine Two Arrays Using the concat Method
Add Elements to the End of an Array Using concat Instead of push
Use the reduce Method to Analyze Data
Use Higher-Order Functions map, filter, or reduce to Solve a Complex Problem
Sort an Array Alphabetically using the sort Method
Return a Sorted Array Without Changing the Original Array
Split a String into an Array Using the split Method
Combine an Array into a String Using the join Method
Apply Functional Programming to Convert Strings to URL Slugs
Use the every Method to Check that Every Element in an Array Meets a Criteria
Use the some Method to Check that Any Elements in an Array Meet a Criteria
Introduction to Currying and Partial Application