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- Challenge Assignment with Minus Equals
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- Challenge Bring your JavaScript Slot Machine to Life
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- Challenge Clone an Element Using jQuery
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- Challenge Concatenate Strings with .concat
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- Challenge Condense arrays with reduce
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- Challenge Convert JSON Data to HTML
- Challenge Count Backwards With a For Loop
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- Challenge Create a Bootstrap Button
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- Challenge Create a Class to Target with jQuery Selectors
- Challenge Create a Custom Heading
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- Challenge Create a JavaScript Slot Machine
- Challenge Create a Set of Checkboxes
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- Challenge Create a Text Field
- Challenge Create an Ordered List
- Challenge Create Bootstrap Wells
- Challenge Create Decimal Numbers with JavaScript
- Challenge Declare JavaScript Objects as Variables
- Challenge Declare JavaScript Variables
- Challenge Declare String Variables
- Challenge Decrement a Number with Javascript
- Challenge Delete HTML Elements
- Challenge Delete Properties from a JavaScript Object
- Challenge Delete your jQuery Functions
- Challenge Disable an Element Using jQuery
- Challenge Ditch Custom CSS for Bootstrap
- Challenge Divide One Number by Another with JavaScript
- Challenge Escape Sequences in Strings
- Challenge Escaping Literal Quotes in Strings
- Challenge Fill in the Blank with Placeholder Text
- Challenge Filter Arrays with filter
- Challenge Find Numbers with Regular Expressions
- Challenge Find the Length of a String
- Challenge Find White Space with Regular Expressions
- Challenge Finding a Remainder in Javascript
- Challenge Generate Random Fractions with JavaScript
- Challenge Generate Random Whole Numbers with JavaScript
- Challenge Generate Random Whole Numbers within a Range
- Challenge Get Geo location Data
- Challenge Get JSON with the jQuery getJSON Method
- Challenge Give a Background Color to a Div Element
- Challenge Give Each Element a Unique ID
- Challenge Give your JavaScript Slot Machine some stylish images
- Challenge Global Scope And Functions
- Challenge Global Vs Local Scope In Functions
- Challenge Headline with the h2 Element
- Challenge House our page within a Bootstrap Container Fluid Div
- Challenge Import a Google Font
- Challenge Increment a Number with Javascript
- Challenge Inform with the Paragraph Element
- Challenge Inherit Styles from the Body Element
- Challenge Initializing Variables with the Equal Operator
- Challenge Introducing Else If Statements
- Challenge Introducing Else Statements
- Challenge Introducing Javascript Object Notation Json
- Challenge Invert Regular Expression Matches with JavaScript
- Challenge Iterate Odd Numbers With a For Loop
- Challenge Iterate over Arrays with map
- Challenge Iterate Through An Array With A For Loop
- Challenge Iterate with JavaScript For Loops
- Challenge Iterate with JavaScript While Loops
- Challenge Join Strings with .join
- Challenge Label Bootstrap Buttons
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- Challenge Learn how Script Tags and Document Ready Work
- Challenge Line up Form Elements Responsively with Bootstrap
- Challenge Link to External Pages with Anchor Elements
- Challenge Local Scope And Functions
- Challenge Make Circular Images with a Border Radius
- Challenge Make Dead Links using the Hash Symbol
- Challenge Make Images Mobile Responsive
- Challenge Make Instances of Objects with a Constructor Function
- Challenge Make Object Properties Private
- Challenge Make Unique Objects by Passing Parameters to our Constructor
- Challenge Manipulate Arrays With pop()
- Challenge Manipulate Arrays With push()
- Challenge Manipulate Arrays With shift()
- Challenge Manipulate Arrays With unshift()
- Challenge Manipulate JavaScript Objects
- Challenge Modify Array Data With Indexes
- Challenge Multiple Identical Options In Switch Statements
- Challenge Multiply Two Numbers with JavaScript
- Challenge Nest an Anchor Element within a Paragraph
- Challenge Nest Many Elements within a Single Div Element
- Challenge Nest one Array within Another Array
- Challenge Nesting For Loops
- Challenge Override All Other Styles by using Important
- Challenge Override Class Declarations by Styling ID Attributes
- Challenge Override Class Declarations with Inline Styles
- Challenge Override Styles in Subsequent CSS
- Challenge Passing Values To Functions With Arguments
- Challenge Perform Arithmetic Operations on Decimals with JavaScript
- Challenge Prefilter JSON
- Challenge Prioritize One Style Over Another
- Challenge Quoting Strings with Single Quotes
- Challenge Remove an Element Using jQuery
- Challenge Remove Classes from an element with jQuery
- Challenge Render Images from Data Sources
- Challenge Replacing If Else Chains With Switch
- Challenge Responsively Style Checkboxes
- Challenge Responsively Style Radio Buttons
- Challenge Return A Value From A Function With Return
- Challenge Return Early Pattern For Functions
- Challenge Returning Boolean Values From Functions
- Challenge Reverse Arrays with reverse
- Challenge Save your Code Revisions Forever with Git
- Challenge Say Hello to HTML Elements
- Challenge Selecting From Many Options With Switch Statements
- Challenge Set the Font Family of an Element
- Challenge Set the ID of an Element
- Challenge Sift through Text with Regular Expressions
- Challenge Size your Images
- Challenge Solution Template
- Challenge Sort Arrays with sort
- Challenge Specify How Fonts Should Degrade
- Challenge Split Strings with split
- Challenge Split your Bootstrap Row
- Challenge Store Multiple Values in one Variable using JavaScript Arrays
- Challenge Storing Values with the Equal Operator
- Challenge Style Multiple Elements with a CSS Class
- Challenge Style Text Inputs as Form Controls
- Challenge Style the HTML Body Element
- Challenge Subtract One Number from Another with JavaScript
- Challenge Target a Specific Child of an Element Using jQuery
- Challenge Target Elements by Class Using jQuery
- Challenge Target Elements by ID Using jQuery
- Challenge Target Even Numbered Elements Using jQuery
- Challenge Target HTML Elements with Selectors Using jQuery
- Challenge Target the Children of an Element Using jQuery
- Challenge Target the Parent of an Element Using jQuery
- Challenge Target the same element with multiple jQuery Selectors
- Challenge Taste the Bootstrap Button Color Rainbow
- Challenge Testing Objects For Properties
- Challenge Trigger Click Events with jQuery
- Challenge Turn an Image into a Link
- Challenge Uncomment HTML
- Challenge Understand Boolean Values
- Challenge Understand String Immutability
- Challenge Understanding Case Sensitivity in Variables
- Challenge Understanding Uninitialized Variables
- Challenge Updating Object Properties
- Challenge Use a CSS Class to Style an Element
- Challenge Use Abbreviated Hex Code
- Challenge Use an ID Attribute to Style an Element
- Challenge Use appendTo to Move Elements with jQuery
- Challenge Use Bracket Notation to Find the First Character in a String
- Challenge Use Bracket Notation to Find the Last Character in a String
- Challenge Use Bracket Notation to Find the Nth Character in a String
- Challenge Use Bracket Notation to Find the Nth to Last Character in a String
- Challenge Use Clockwise Notation to Specify the Margin of an Element
- Challenge Use Clockwise Notation to Specify the Padding of an Element
- Challenge Use Comments to Clarify Code
- Challenge Use Conditional Logic with If Else Statements
- Challenge Use CSS Selectors to Style Elements
- Challenge Use Hex Code for Specific Colors
- Challenge Use Hex Code for Specific Shades of Gray
- Challenge Use Hex Code to Color Elements Blue
- Challenge Use Hex Code to Color Elements Gray
- Challenge Use Hex Code to Color Elements Green
- Challenge Use Hex Code to Color Elements Red
- Challenge Use Hex Code to Color Elements White
- Challenge Use Hex Code to Mix Colors
- Challenge Use HTML5 to Require a Field
- Challenge Use jQuery to Modify the Entire Page
- Challenge Use Responsive Design with Bootstrap Fluid Containers
- Challenge Use RGB to Color Elements Blue
- Challenge Use RGB to Color Elements Gray
- Challenge Use RGB to Color Elements Green
- Challenge Use RGB to Color Elements Red
- Challenge Use RGB to Color Elements White
- Challenge Use RGB to Mix Colors
- Challenge Use RGB values to Color Elements
- Challenge Use Spans for Inline Elements
- Challenge Use the Bootstrap Grid to Put Elements Side By Side
- Challenge Use the Javascript Console
- Challenge Using Objects For Lookups
- Challenge Using typeof
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- Challenge Write Reusable JavaScript with Functions
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JS Concepts
JS Language Reference
- arguments
- Array.prototype.filter
- Array.prototype.indexOf
- Array.prototype.map
- Array.prototype.pop
- Array.prototype.push
- Array.prototype.shift
- Array.prototype.slice
- Array.prototype.some
- Array.prototype.toString
- Boolean
- for loop
- for..in loop
- for..of loop
- String.prototype.split
- String.prototype.toLowerCase
- String.prototype.toUpperCase
- undefined
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A primitive value automatically assigned to variables that have just been declared or to formal arguments for which there are no actual arguments.
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