FreeCodeCamp Legacy Javascript Algorithms and Data Structures Course Breakdown

https://www.freecodecamp.org/learn/javascript-algorithms-and-data-structures/

JavaScript Algorithm and Data Structures CertificationWhile HTML and CSS control the content and styling of a page, JavaScript is used to make it interactive. This comprehensive certification takes you from foundational concepts to advanced programming paradigms.

What You'll Master
> JavaScript Fundamentals: variables, arrays, objects, loops, and functions
> ES6 Features: arrow functions, destructuring, template literals, and modules
> Data Structures: arrays, objects, and complex data manipulation
> Algorithm Design: problem-solving patterns and efficiency
> Debugging Techniques: identifying and fixing code issues
> Regular Expressions: pattern matching and text manipulation


Practical Applications
> String manipulation algorithms
> Mathematical operations and factorialization
> Array sorting and searching techniques
> Object-oriented data handling
> Real-world calculations (e.g., orbit simulations)
> Interactive web application development


Programming Paradigms
> Object Oriented Programming (OOP): classes, inheritance, and encapsulation
> Functional Programming (FP): pure functions, higher-order functions, and immutability
> Protocol-oriented programming patterns
> Asynchronous programming techniques


Certification Outcomes
> Build interactive, dynamic web applications
> Write efficient, maintainable JavaScript code
> Solve complex algorithmic challenges
> Understand modern JavaScript frameworks
> Prepare for advanced software development roles


This certification provides the essential JavaScript skills needed for modern web development, combining theoretical knowledge with practical, real-world application.
There are 294 lessons and modules in total. Try doing 20 or 30 per day.
Watch the video above for a comprehensive guide.

JavaScript Concepts Categorized
1. Basics & Fundamentals
> Comment Your JavaScript Code
> Understanding Case Sensitivity in Variables


2. Variables and Declaration
> Declare JavaScript Variables
> Storing Values with the Assignment Operator
> Assigning the Value of One Variable to Another
> Initializing Variables with the Assignment Operator
> Understanding Uninitialized Variables
> Explore Differences Between the var and let Keywords
> Declare a Read-Only Variable with the const Keyword


3. Numbers and Arithmetic Operations
> 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


4. Strings
> Declare String Variables
> 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 (String manipulation challenge)


5. Arrays
> 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 Method
> Manipulate Arrays With pop Method
> Manipulate Arrays With shift Method
> Manipulate Arrays With unshift Method
> Shopping List (Array manipulation challenge)
> Iterate Through an Array with a For Loop
> Accessing Nested Arrays


6. Functions
> 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 (Function challenge - queue simulation)
> Return Early Pattern for Functions


7. Conditional Logic (If/Else, Switch, Booleans)
> Understanding Boolean Values
> Use Conditional Logic with If Statements
> Introducing Else Statements
> Introducing Else If Statements
> Logical Order in If Else Statements
> Chaining If Else Statements
> Golf Code (Conditional logic challenge)
> Returning Boolean Values from Functions
> 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
> 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
> Use the Conditional (Ternary) Operator
> Use Multiple Conditional (Ternary) Operators


8. Objects
> 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
> Record Collection (Object manipulation challenge)
> Profile Lookup (Object lookup challenge)


9. Loops and Iteration
> Iterate with JavaScript While Loops
> Iterate with JavaScript For Loops
> Iterate Odd Numbers With a For Loop
> Count Backwards With a For Loop
> Nesting For Loops
> Iterate with JavaScript Do...While Loops


10. Recursion
> Replace Loops using Recursion
> Use Recursion to Create a Countdown
> Use Recursion to Create a Range of Numbers


11. Randomness and Parsing
> 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

12. Algorithm Challenges & Projects(Comprehensive challenges applying concepts from multiple topics)
> Word Blanks
> Shopping List
> Stand in Line
> Golf Code
> Counting Cards
> Record Collection
> Profile Lookup

JavaScript ES6 Concepts Categorized
1. Variable Declarations & Scoping
> Compare Scopes of the var and let Keywords
> Mutate an Array Declared with const
> Prevent Object Mutation


2. Functions
> 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


3. Destructuring Assignment
> 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
> Destructuring via rest elements
> Use Destructuring Assignment to Pass an Object as a Function's Parameters


4. Template Literals & Object Shorthand
> Create Strings using Template Literals
> Write Concise Object Literal Declarations Using Object Property Shorthand
> Write Concise Declarative Functions with ES6


5. Classes & Object-Oriented Features
> Use class Syntax to Define a Constructor Function
> Use getters and setters to Control Access to an Object


6. Modules
> 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


7. Promises
> Create a JavaScript Promise
> Complete a Promise with resolve and reject
> Handle a Fulfilled Promise with then
> Handle a Rejected Promise with catch


8. The Spread Operator
> Use the Spread Operator to Evaluate Arrays In-Place

JavaScript Regular Expression Concepts Categorized
1. Basic Matching & Testing
> Using the Test Method
> Match Literal Strings
> Match a Literal String with Different Possibilities
> Ignore Case While Matching
> Extract Matches
> Find More Than the First Match


2. Character Classes & Wildcards
> 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 All Letters and Numbers
> Match Everything But Letters and Numbers
> Match All Numbers
> Match All Non-Numbers
> Match Whitespace
> Match Non-Whitespace Characters


3. Quantifiers & Repetition
> Match Characters that Occur One or More Times
> Match Characters that Occur Zero or More Times
> Specify Upper and Lower Number of Matches
> Specify Only the Lower Number of Matches
> Specify Exact Number of Matches
> Check for All or None


4. Advanced Matching Techniques
> Find Characters with Lazy Matching
> Find One or More Criminals in a Hunt
> Match Beginning String Patterns
> Match Ending String Patterns
> Restrict Possible Usernames


5. Lookaheads & Grouping
> Positive and Negative Lookahead
> Check For Mixed Grouping of Characters
> Reuse Patterns Using Capture Groups


6. Search, Replace & Practical Applications
> Use Capture Groups to Search and Replace
> Remove Whitespace from Start and End

JavaScript Debugging Concepts Categorized
1. Console & Development Tools
> Use the JavaScript Console to Check the Value of a Variable
> Understanding the Differences between the freeCodeCamp and Browser Console
> Use typeof to Check the Type of a Variable


2. Syntax & Common Mistakes
> 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


3. Logic & Function Errors
> Catch Arguments Passed in the Wrong Order When Calling a Function
> Catch Off By One Errors When Using Indexing


4. Loop & Control Flow Issues
> Use Caution When Reinitializing Variables Inside a Loop
> Prevent Infinite Loops with a Valid Terminal Condition

JavaScript Basic Data Structures Concepts Categorized
1. Array Fundamentals
> Use an Array to Store a Collection of Data
> Access an Array's Contents Using Bracket Notation
> Create complex multi-dimensional arrays


2. Array Manipulation - Adding/Removing
> 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()


3. Array Copying & Combining
> Copy Array Items Using slice()
> Copy an Array with the Spread Operator
> Combine Arrays with the Spread Operator


4. Array Searching & Iteration
> Check For The Presence of an Element With indexOf()
> Iterate Through All an Array's Items Using For Loops


5. Object Fundamentals
> Add Key-Value Pairs to JavaScript Objects
> Access Property Names with Bracket Notation
> Modify an Object Nested Within an Object


6. Object Manipulation & Inspection
> Use the delete Keyword to Remove Object Properties
> Check if an Object has a Property
> Modify an Array Stored in an Object


7. Object Iteration
> Iterate Through the Keys of an Object with a for...in Statement
> Generate an Array of All Object Keys with Object.keys()

JavaScript Basic Algorithm Scripting Concepts Categorized
1. String Manipulation
> Reverse a String
> Find the Longest Word in a String
> Confirm the Ending
> Repeat a String Repeat a String
> Truncate a String
> Title Case a Sentence
> Mutations


2. Array Operations
> Return Largest Numbers in Arrays
> Finders Keepers
> Falsy Bouncer
> Where do I Belong
> Chunky Monkey
> Slice and Splice


3. Mathematical Operations
> Convert Celsius to Fahrenheit
> Factorialize a Number


4. Type Checking & Validation
> Boo who
> Title Case a Sentence
> Slice and Splice
> Falsy Bouncer
> Where do I Belong
> Mutations
> Chunky Monkey

JavaScript Object Oriented Programming Concepts Categorized
1. Object Basics
> Create a Basic JavaScript Object
> Use Dot Notation to Access the Properties of an Object
> Create a Method on an Object
> Make Code More Reusable with the this Keyword


2. Constructors & Instantiation
> 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


3. Prototypes & Inheritance
> 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


4. Classical Inheritance Patterns
> 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


5. Advanced Patterns & Techniques
> 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

JavaScript Functional Programming Concepts Categorized
1. Functional Programming Fundamentals
> Learn About Functional Programming
> Understand Functional Programming Terminology
> Understand the Hazards of Using Imperative Code
> Avoid Mutations and Side Effects Using Functional Programming


2. Pure Functions & Avoiding Side Effects
> Pass Arguments to Avoid External Dependence in a Function
> Refactor Global Variables Out of Functions


3. Array Transformation Methods
> 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
> Use the reduce Method to Analyze Data
> Use Higher-Order Functions map, filter, or reduce to Solve a Complex Problem


4. Immutable Array Operations
> 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
> Sort an Array Alphabetically using the sort Method
> Return a Sorted Array Without Changing the Original Array


5. String & Array Conversion
> 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


6. Array Validation Methods
> 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


7. Advanced Functional Concepts
> Introduction to Currying and Partial Application

JavaScript Intermediate Algorithm Scripting Concepts Categorized
1. Mathematical & Numerical Operations
> Sum All Numbers in a Range
> Sum All Odd Fibonacci Numbers
> Sum All Primes
> Smallest Common Multiple


2. Array Manipulation & Comparison
> Diff Two Arrays
> Seek and Destroy
> Sorted Union
> Drop it
> Steamroller


3. String Manipulation & Conversion
> Spinal Tap Case
> Pig Latin
> Convert HTML Entities
> Binary Agents


4. Object Operations & Search
> Wherefore art thou
> Search and Replace
> Everything Be True


5. Advanced Algorithm Challenges
> DNA Pairing
> Missing letters
> Arguments Optional
> Make a Person
> Map the Debris

FreeCodeCamp Legacy Javascript Algorithms and Data Structures Course Breakdown

JavaScript Algorithm and Data Structures Certification

What You'll Master

Practical Applications

Programming Paradigms

Certification Outcomes

JavaScript Concepts Categorized

1. Basics & Fundamentals

2. Variables and Declaration

3. Numbers and Arithmetic Operations

4. Strings

5. Arrays

6. Functions

7. Conditional Logic (If/Else, Switch, Booleans)

8. Objects

9. Loops and Iteration

10. Recursion

11. Randomness and Parsing

12. Algorithm Challenges & Projects

JavaScript ES6 Concepts Categorized

1. Variable Declarations & Scoping

2. Functions

3. Destructuring Assignment

4. Template Literals & Object Shorthand

5. Classes & Object-Oriented Features

6. Modules

7. Promises

8. The Spread Operator

JavaScript Regular Expression Concepts Categorized

1. Basic Matching & Testing

2. Character Classes & Wildcards

3. Quantifiers & Repetition

4. Advanced Matching Techniques

5. Lookaheads & Grouping

6. Search, Replace & Practical Applications

JavaScript Debugging Concepts Categorized

1. Console & Development Tools

2. Syntax & Common Mistakes

3. Logic & Function Errors

4. Loop & Control Flow Issues

JavaScript Basic Data Structures Concepts Categorized

1. Array Fundamentals

2. Array Manipulation - Adding/Removing

3. Array Copying & Combining

4. Array Searching & Iteration

5. Object Fundamentals

6. Object Manipulation & Inspection

7. Object Iteration

JavaScript Basic Algorithm Scripting Concepts Categorized

1. String Manipulation

2. Array Operations

3. Mathematical Operations

4. Type Checking & Validation

JavaScript Object Oriented Programming Concepts Categorized

1. Object Basics

2. Constructors & Instantiation

3. Prototypes & Inheritance

4. Classical Inheritance Patterns

5. Advanced Patterns & Techniques

JavaScript Functional Programming Concepts Categorized

1. Functional Programming Fundamentals

2. Pure Functions & Avoiding Side Effects

3. Array Transformation Methods

4. Immutable Array Operations

5. String & Array Conversion

6. Array Validation Methods

7. Advanced Functional Concepts

JavaScript Intermediate Algorithm Scripting Concepts Categorized

1. Mathematical & Numerical Operations

2. Array Manipulation & Comparison

3. String Manipulation & Conversion

4. Object Operations & Search

5. Advanced Algorithm Challenges

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