| Challenges | Completed | Last Updated | Solution |
|---|
| Learn How freeCodeCamp Works | Apr 19, 2016 | Nov 08, 2017 | View this challenge | Learn How freeCodeCamp Works |
| Create a GitHub Account and Join our Chat Rooms | Apr 19, 2016 | | View this challenge | Create a GitHub Account and Join our Chat Rooms |
| Configure your Code Portfolio | Apr 19, 2016 | | View this challenge | Configure your Code Portfolio |
| Join a Campsite in Your City | Apr 19, 2016 | | View this challenge | Join a Campsite in Your City |
| Learn What to Do If You Get Stuck | Apr 19, 2016 | | View this challenge | Learn What to Do If You Get Stuck |
| Say Hello to HTML Elements | Apr 19, 2016 | | View solution | View solution |
| Headline with the h2 Element | Apr 19, 2016 | | View solution | View solution |
| Inform with the Paragraph Element | Apr 19, 2016 | | View solution | View solution |
| Uncomment HTML | Apr 19, 2016 | | View solution | View solution |
| Comment out HTML | Apr 19, 2016 | | View solution | View solution |
| Fill in the Blank with Placeholder Text | Apr 19, 2016 | | View solution | View solution |
| Delete HTML Elements | Apr 19, 2016 | | View solution | View solution |
| Change the Color of Text | Apr 19, 2016 | | View solution | View solution |
| Use CSS Selectors to Style Elements | Apr 19, 2016 | | View solution | View solution |
| Use a CSS Class to Style an Element | Apr 20, 2016 | | View solution | View solution |
| Style Multiple Elements with a CSS Class | Apr 20, 2016 | | View solution | View solution |
| Change the Font Size of an Element | Apr 20, 2016 | | View solution | View solution |
| Set the Font Family of an Element | Apr 20, 2016 | | View solution | View solution |
| Import a Google Font | Apr 20, 2016 | | View solution | View solution |
| Specify How Fonts Should Degrade | Apr 20, 2016 | | View solution | View solution |
| Add Images to your Website | Apr 20, 2016 | | View solution | View solution |
| Size your Images | Apr 20, 2016 | | View solution | View solution |
| Add Borders Around your Elements | Apr 20, 2016 | | View solution | View solution |
| Add Rounded Corners with a Border Radius | Apr 20, 2016 | | View solution | View solution |
| Make Circular Images with a Border Radius | Apr 21, 2016 | | View solution | View solution |
| Link to External Pages with Anchor Elements | Apr 21, 2016 | | View solution | View solution |
| Nest an Anchor Element within a Paragraph | Apr 21, 2016 | | View solution | View solution |
| Make Dead Links using the Hash Symbol | Apr 21, 2016 | | View solution | View solution |
| Turn an Image into a Link | Apr 21, 2016 | | View solution | View solution |
| Add Alt Text to an Image for Accessibility | Apr 21, 2016 | | View solution | View solution |
| Create a Bulleted Unordered List | Apr 21, 2016 | | View solution | View solution |
| Create an Ordered List | Apr 21, 2016 | | View solution | View solution |
| Create a Text Field | Apr 21, 2016 | | View solution | View solution |
| Add Placeholder Text to a Text Field | Apr 21, 2016 | | View solution | View solution |
| Create a Form Element | Apr 22, 2016 | | View solution | View solution |
| Add a Submit Button to a Form | Apr 22, 2016 | | View solution | View solution |
| Use HTML5 to Require a Field | Apr 22, 2016 | | View solution | View solution |
| Create a Set of Radio Buttons | Apr 22, 2016 | | View solution | View solution |
| Create a Set of Checkboxes | Apr 22, 2016 | | View solution | View solution |
| Check Radio Buttons and Checkboxes by Default | Apr 22, 2016 | | View solution | View solution |
| Nest Many Elements within a Single Div Element | Apr 22, 2016 | | View solution | View solution |
| Give a Background Color to a Div Element | Apr 22, 2016 | | View solution | View solution |
| Set the ID of an Element | Apr 28, 2016 | | View solution | View solution |
| Use an ID Attribute to Style an Element | Apr 28, 2016 | | View solution | View solution |
| Adjusting the Padding of an Element | Apr 28, 2016 | | View solution | View solution |
| Adjust the Margin of an Element | Apr 28, 2016 | | View solution | View solution |
| Add a Negative Margin to an Element | Apr 28, 2016 | | View solution | View solution |
| Add Different Padding to Each Side of an Element | Apr 28, 2016 | | View solution | View solution |
| Add Different Margins to Each Side of an Element | Apr 28, 2016 | | View solution | View solution |
| Use Clockwise Notation to Specify the Padding of an Element | Apr 28, 2016 | | View solution | View solution |
| Use Clockwise Notation to Specify the Margin of an Element | Apr 28, 2016 | | View solution | View solution |
| Style the HTML Body Element | Apr 28, 2016 | | View solution | View solution |
| Inherit Styles from the Body Element | May 03, 2016 | | View solution | View solution |
| Prioritize One Style Over Another | May 03, 2016 | | View solution | View solution |
| Override Styles in Subsequent CSS | May 03, 2016 | | View solution | View solution |
| Override Class Declarations by Styling ID Attributes | May 03, 2016 | | View solution | View solution |
| Override Class Declarations with Inline Styles | May 03, 2016 | | View solution | View solution |
| Override All Other Styles by using Important | May 03, 2016 | | View solution | View solution |
| Use Hex Code for Specific Colors | May 03, 2016 | | View solution | View solution |
| Use Hex Code to Color Elements White | May 07, 2016 | | View solution | View solution |
| Use Hex Code to Color Elements Red | May 07, 2016 | | View solution | View solution |
| Use Hex Code to Color Elements Green | May 07, 2016 | | View solution | View solution |
| Use Hex Code to Color Elements Blue | May 07, 2016 | | View solution | View solution |
| Use Hex Code to Mix Colors | May 07, 2016 | | View solution | View solution |
| Use Hex Code to Color Elements Gray | May 07, 2016 | | View solution | View solution |
| Use Hex Code for Specific Shades of Gray | May 07, 2016 | | View solution | View solution |
| Use Abbreviated Hex Code | May 07, 2016 | | View solution | View solution |
| Use RGB values to Color Elements | May 07, 2016 | | View solution | View solution |
| Use RGB to Color Elements White | May 07, 2016 | | View solution | View solution |
| Use RGB to Color Elements Red | May 07, 2016 | | View solution | View solution |
| Use RGB to Color Elements Green | May 07, 2016 | | View solution | View solution |
| Use RGB to Color Elements Blue | May 07, 2016 | | View solution | View solution |
| Use RGB to Mix Colors | May 07, 2016 | | View solution | View solution |
| Use Responsive Design with Bootstrap Fluid Containers | May 07, 2016 | | View solution | View solution |
| Make Images Mobile Responsive | May 07, 2016 | | View solution | View solution |
| Center Text with Bootstrap | May 07, 2016 | | View solution | View solution |
| Create a Bootstrap Button | May 07, 2016 | | View solution | View solution |
| Create a Block Element Bootstrap Button | May 07, 2016 | | View solution | View solution |
| Taste the Bootstrap Button Color Rainbow | May 07, 2016 | | View solution | View solution |
| Call out Optional Actions with Button Info | May 07, 2016 | | View solution | View solution |
| Warn your Users of a Dangerous Action | May 07, 2016 | | View solution | View solution |
| Use the Bootstrap Grid to Put Elements Side By Side | May 10, 2016 | | View solution | View solution |
| Ditch Custom CSS for Bootstrap | May 10, 2016 | | View solution | View solution |
| Use Spans for Inline Elements | May 10, 2016 | | View solution | View solution |
| Create a Custom Heading | May 13, 2016 | | View solution | View solution |
| Add Font Awesome Icons to our Buttons | May 13, 2016 | | View solution | View solution |
| Add Font Awesome Icons to all of our Buttons | May 13, 2016 | | View solution | View solution |
| Responsively Style Radio Buttons | May 13, 2016 | | View solution | View solution |
| Responsively Style Checkboxes | May 15, 2016 | | View solution | View solution |
| Style Text Inputs as Form Controls | May 15, 2016 | | View solution | View solution |
| Line up Form Elements Responsively with Bootstrap | May 15, 2016 | | View solution | View solution |
| Create a Bootstrap Headline | May 15, 2016 | | View solution | View solution |
| House our page within a Bootstrap Container Fluid Div | May 18, 2016 | | View solution | View solution |
| Create a Bootstrap Row | May 18, 2016 | | View solution | View solution |
| Split your Bootstrap Row | May 18, 2016 | | View solution | View solution |
| Create Bootstrap Wells | May 18, 2016 | | View solution | View solution |
| Add Elements within your Bootstrap Wells | May 18, 2016 | | View solution | View solution |
| Apply the Default Bootstrap Button Style | May 18, 2016 | | View solution | View solution |
| Create a Class to Target with jQuery Selectors | May 18, 2016 | | View solution | View solution |
| Add ID Attributes to Bootstrap Elements | May 18, 2016 | | View solution | View solution |
| Label Bootstrap Wells | May 18, 2016 | | View solution | View solution |
| Give Each Element a Unique ID | May 18, 2016 | | View solution | View solution |
| Label Bootstrap Buttons | May 18, 2016 | | View solution | View solution |
| Use Comments to Clarify Code | May 18, 2016 | | View solution | View solution |
| Join our LinkedIn Alumni Network | May 18, 2016 | | View this challenge | Join our LinkedIn Alumni Network |
| Join our Subreddit | May 18, 2016 | | View this challenge | Join our Subreddit |
| Read Coding News on our Medium Publication | May 18, 2016 | | View this challenge | Read Coding News on our Medium Publication |
| Watch Coding Videos on our YouTube Channel | May 18, 2016 | | View this challenge | Watch Coding Videos on our YouTube Channel |
| Commit to a Goal and a Nonprofit | May 18, 2016 | | View this challenge | Commit to a Goal and a Nonprofit |
| Join our Forum | May 24, 2016 | | View this challenge | Join our Forum |
| Learn how Script Tags and Document Ready Work | May 25, 2016 | | View solution | View solution |
| Target HTML Elements with Selectors Using jQuery | May 25, 2016 | | View solution | View solution |
| Target Elements by Class Using jQuery | May 25, 2016 | | View solution | View solution |
| Target Elements by ID Using jQuery | May 25, 2016 | | View solution | View solution |
| Delete your jQuery Functions | May 25, 2016 | | View solution | View solution |
| Target the same element with multiple jQuery Selectors | May 25, 2016 | | View solution | View solution |
| Remove Classes from an element with jQuery | May 25, 2016 | | View solution | View solution |
| Change the CSS of an Element Using jQuery | May 25, 2016 | | View solution | View solution |
| Disable an Element Using jQuery | May 25, 2016 | | View solution | View solution |
| Change Text Inside an Element Using jQuery | May 25, 2016 | | View solution | View solution |
| Remove an Element Using jQuery | May 25, 2016 | | View solution | View solution |
| Use appendTo to Move Elements with jQuery | May 26, 2016 | | View solution | View solution |
| Clone an Element Using jQuery | May 26, 2016 | | View solution | View solution |
| Target the Parent of an Element Using jQuery | May 26, 2016 | | View solution | View solution |
| Target the Children of an Element Using jQuery | May 26, 2016 | | View solution | View solution |
| Target a Specific Child of an Element Using jQuery | May 26, 2016 | | View solution | View solution |
| Target Even Numbered Elements Using jQuery | May 26, 2016 | | View solution | View solution |
| Use jQuery to Modify the Entire Page | May 26, 2016 | May 26, 2016 | View solution | View solution |
| Get Set for our Front End Development Projects | May 26, 2016 | May 26, 2016 | View this challenge | Get Set for our Front End Development Projects |
| Comment your JavaScript Code | May 27, 2016 | | View solution | View solution |
| Declare JavaScript Variables | May 27, 2016 | | View solution | View solution |
| Storing Values with the Assignment Operator | May 27, 2016 | | View solution | View solution |
| Initializing Variables with the Assignment Operator | May 27, 2016 | | View solution | View solution |
| Understanding Uninitialized Variables | May 31, 2016 | | View solution | View solution |
| Understanding Case Sensitivity in Variables | May 31, 2016 | | View solution | View solution |
| Add Two Numbers with JavaScript | May 31, 2016 | | View solution | View solution |
| Subtract One Number from Another with JavaScript | May 31, 2016 | | View solution | View solution |
| Multiply Two Numbers with JavaScript | May 31, 2016 | | View solution | View solution |
| Divide One Number by Another with JavaScript | May 31, 2016 | | View solution | View solution |
| Increment a Number with JavaScript | May 31, 2016 | | View solution | View solution |
| Decrement a Number with JavaScript | May 31, 2016 | | View solution | View solution |
| Create Decimal Numbers with JavaScript | May 31, 2016 | | View solution | View solution |
| Multiply Two Decimals with JavaScript | May 31, 2016 | | View solution | View solution |
| Divide one Decimal by Another with JavaScript | May 31, 2016 | | View solution | View solution |
| Finding a Remainder in JavaScript | May 31, 2016 | | View solution | View solution |
| Compound Assignment With Augmented Addition | May 31, 2016 | | View solution | View solution |
| Compound Assignment With Augmented Subtraction | May 31, 2016 | | View solution | View solution |
| Compound Assignment With Augmented Multiplication | May 31, 2016 | | View solution | View solution |
| Compound Assignment With Augmented Division | May 31, 2016 | | View solution | View solution |
| Convert Celsius to Fahrenheit | May 31, 2016 | | View solution | View solution |
| Declare String Variables | May 31, 2016 | | View solution | View solution |
| Escaping Literal Quotes in Strings | May 31, 2016 | | View solution | View solution |
| Quoting Strings with Single Quotes | May 31, 2016 | | View solution | View solution |
| Escape Sequences in Strings | May 31, 2016 | | View solution | View solution |
| Concatenating Strings with Plus Operator | May 31, 2016 | | View solution | View solution |
| Concatenating Strings with the Plus Equals Operator | Jun 01, 2016 | | View solution | View solution |
| Constructing Strings with Variables | Jun 01, 2016 | | View solution | View solution |
| Appending Variables to Strings | Jun 01, 2016 | | View solution | View solution |
| Find the Length of a String | Jun 01, 2016 | | View solution | View solution |
| Use Bracket Notation to Find the First Character in a String | Jun 01, 2016 | | View solution | View solution |
| Understand String Immutability | Jun 01, 2016 | | View solution | View solution |
| Use Bracket Notation to Find the Nth Character in a String | Jun 01, 2016 | | View solution | View solution |
| Use Bracket Notation to Find the Last Character in a String | Jun 03, 2016 | | View solution | View solution |
| Use Bracket Notation to Find the NthtoLast Character in a String | Jun 05, 2016 | Jun 09, 2016 | View solution | View solution |
| Word Blanks | Jun 09, 2016 | | View solution | View solution |
| Store Multiple Values in one Variable using JavaScript Arrays | Jun 09, 2016 | | View solution | View solution |
| Nest one Array within Another Array | Jun 09, 2016 | | View solution | View solution |
| Access Array Data with Indexes | Jun 09, 2016 | | View solution | View solution |
| Modify Array Data With Indexes | Jun 09, 2016 | | View solution | View solution |
| Access MultiDimensional Arrays With Indexes | Jun 09, 2016 | | View solution | View solution |
| Manipulate Arrays With push | Jun 10, 2016 | | View solution | View solution |
| Manipulate Arrays With pop | Jun 10, 2016 | | View solution | View solution |
| Manipulate Arrays With shift | Jun 10, 2016 | | View solution | View solution |
| Manipulate Arrays With unshift | Jun 10, 2016 | | View solution | View solution |
| Shopping List | Jun 13, 2016 | | View solution | View solution |
| Write Reusable JavaScript with Functions | Jun 13, 2016 | | View solution | View solution |
| Passing Values to Functions with Arguments | Jun 13, 2016 | | View solution | View solution |
| Global Scope and Functions | Jun 14, 2016 | | View solution | View solution |
| Local Scope and Functions | Jun 14, 2016 | | View solution | View solution |
| Global vs Local Scope in Functions | Jun 14, 2016 | | View solution | View solution |
| Return a Value from a Function with Return | Jun 14, 2016 | | View solution | View solution |
| Assignment with a Returned Value | Jun 14, 2016 | | View solution | View solution |
| Stand in Line | Jun 14, 2016 | | View solution | View solution |
| Understanding Boolean Values | Jun 14, 2016 | | View solution | View solution |
| Use Conditional Logic with If Statements | Jun 15, 2016 | | View solution | View solution |
| Comparison with the Equality Operator | Jun 15, 2016 | | View solution | View solution |
| Comparison with the Strict Equality Operator | Jun 15, 2016 | | View solution | View solution |
| Comparison with the Inequality Operator | Jun 15, 2016 | | View solution | View solution |
| Comparison with the Strict Inequality Operator | Jun 15, 2016 | | View solution | View solution |
| Comparison with the Greater Than Operator | Jun 15, 2016 | | View solution | View solution |
| Comparison with the Greater Than Or Equal To Operator | Jun 15, 2016 | | View solution | View solution |
| Comparison with the Less Than Operator | Jun 15, 2016 | | View solution | View solution |
| Comparison with the Less Than Or Equal To Operator | Jun 15, 2016 | | View solution | View solution |
| Comparisons with the Logical And Operator | Jun 15, 2016 | | View solution | View solution |
| Comparisons with the Logical Or Operator | Jun 15, 2016 | | View solution | View solution |
| Introducing Else Statements | Jun 15, 2016 | | View solution | View solution |
| Introducing Else If Statements | Jun 15, 2016 | | View solution | View solution |
| Logical Order in If Else Statements | Jun 15, 2016 | | View solution | View solution |
| Chaining If Else Statements | Jun 15, 2016 | | View solution | View solution |
| Golf Code | Jun 15, 2016 | | View solution | View solution |
| Selecting from many options with Switch Statements | Jun 15, 2016 | | View solution | View solution |
| Adding a default option in Switch statements | Jun 15, 2016 | | View solution | View solution |
| Multiple Identical Options in Switch Statements | Jun 15, 2016 | | View solution | View solution |
| Replacing If Else Chains with Switch | Jun 15, 2016 | | View solution | View solution |
| Returning Boolean Values from Functions | Jun 15, 2016 | | View solution | View solution |
| Return Early Pattern for Functions | Jun 15, 2016 | | View solution | View solution |
| Counting Cards | Jun 15, 2016 | | View solution | View solution |
| Build JavaScript Objects | Jun 15, 2016 | Jun 22, 2016 | View solution | View solution |
| Accessing Objects Properties with the Dot Operator | Jun 15, 2016 | Jun 22, 2016 | View solution | View solution |
| Accessing Objects Properties with Bracket Notation | Jun 15, 2016 | Jun 22, 2016 | View solution | View solution |
| Accessing Objects Properties with Variables | Jun 16, 2016 | Jun 22, 2016 | View solution | View solution |
| Updating Object Properties | Jun 16, 2016 | Jun 22, 2016 | View solution | View solution |
| Add New Properties to a JavaScript Object | Jun 16, 2016 | Jun 22, 2016 | View solution | View solution |
| Delete Properties from a JavaScript Object | Jun 16, 2016 | Jun 22, 2016 | View solution | View solution |
| Using Objects for Lookups | Jun 20, 2016 | Jun 22, 2016 | View solution | View solution |
| Testing Objects for Properties | Jun 20, 2016 | | View solution | View solution |
| Introducing JavaScript Object Notation JSON | Jun 20, 2016 | | View solution | View solution |
| Accessing Nested Objects in JSON | Jun 20, 2016 | | View solution | View solution |
| Accessing Nested Arrays in JSON | Jun 20, 2016 | | View solution | View solution |
| Record Collection | Jun 20, 2016 | | View solution | View solution |
| Iterate with JavaScript For Loops | Jun 20, 2016 | | View solution | View solution |
| Iterate Odd Numbers With a For Loop | Jun 21, 2016 | | View solution | View solution |
| Count Backwards With a For Loop | Jun 21, 2016 | | View solution | View solution |
| Iterate Through an Array with a For Loop | Jun 21, 2016 | | View solution | View solution |
| Nesting For Loops | Jun 21, 2016 | | View solution | View solution |
| Iterate with JavaScript While Loops | Jun 21, 2016 | | View solution | View solution |
| Profile Lookup | Jun 22, 2016 | | View solution | View solution |
| Generate Random Fractions with JavaScript | Jun 22, 2016 | | View solution | View solution |
| Generate Random Whole Numbers with JavaScript | Jun 22, 2016 | | View solution | View solution |
| Generate Random Whole Numbers within a Range | Jun 23, 2016 | | View solution | View solution |
| Sift through Text with Regular Expressions | Jun 23, 2016 | | View solution | View solution |
| Find Numbers with Regular Expressions | Jun 23, 2016 | | View solution | View solution |
| Find Whitespace with Regular Expressions | Jun 23, 2016 | | View solution | View solution |
| Invert Regular Expression Matches with JavaScript | Jun 23, 2016 | | View solution | View solution |
| Declare JavaScript Objects as Variables | Jun 29, 2016 | | View solution | View solution |
| Construct JavaScript Objects with Functions | Jun 29, 2016 | | View solution | View solution |
| Make Instances of Objects with a Constructor Function | Jun 29, 2016 | | View solution | View solution |
| Make Unique Objects by Passing Parameters to our Constructor | Jun 29, 2016 | | View solution | View solution |
| Make Object Properties Private | Jul 04, 2016 | | View solution | View solution |
| Iterate over Arrays with map | Jul 04, 2016 | | View solution | View solution |
| Condense arrays with reduce | Jul 05, 2016 | | View solution | View solution |
| Filter Arrays with filter | Jul 05, 2016 | | View solution | View solution |
| Sort Arrays with sort | Jul 05, 2016 | | View solution | View solution |
| Reverse Arrays with reverse | Jul 05, 2016 | | View solution | View solution |
| Concatenate Arrays with concat | Jul 05, 2016 | | View solution | View solution |
| Split Strings with split | Jul 05, 2016 | | View solution | View solution |
| Join Strings with join | Jul 05, 2016 | | View solution | View solution |
| Get Set for our Algorithm Challenges | Jul 05, 2016 | | View this challenge | Get Set for our Algorithm Challenges |
| Change Text with Click Events | Aug 24, 2016 | | View solution | View solution |
| Get JSON with the jQuery getJSON Method | Aug 24, 2016 | | View solution | View solution |
| Convert JSON Data to HTML | Aug 24, 2016 | | View solution | View solution |
| Render Images from Data Sources | Aug 24, 2016 | | View solution | View solution |
| Prefilter JSON | Aug 24, 2016 | | View solution | View solution |
| Get Geolocation Data | Aug 24, 2016 | | View solution | View solution |
| Trigger Click Events with jQuery | Aug 24, 2016 | | View solution | View solution |
| Become a Supporter | Jul 29, 2017 | | View this challenge | Become a Supporter |
