100 Front End Interview Questions Challenge

• 70 previous chapters
• Success
• Data Types
• Const -vs- Let -vs- Var
• Pass By Value & Pass By Reference
• Map vs Filter vs Reduce
• Falsey Values
• Global Variables
• This
• Equality
• Coercion
• Delete
• Typeof
• Object Notation
• Strict Mode
• Anonymous Functions
• Callbacks
• Closure
• Naming & Standards
• Empty Arrays
• Mul Functions
• Create Array
• Undefined vs Null
• Math
• instanceof
• iife
• Maintaining State and Local Storage
• HTML5 APIs
• Destructuring
• Rest and Spread Operator
• Arrow Functions
• NaN
• Undeclared vs Undefined
• DOM Selectors
• Copy Objects
• Comparing 2 Objects
• Service Workers
• Duplicates
• HTTP Methods
• HTTP Status Codes
• REST
• Sync vs Async
• Timers
• Promises
• Async-Await
• CSS Properties
• Visibility Hidden vs Display None
• CSS Terminology
• Data Attribute
• Class vs Id
• CSS Specificity
• Responsive Design
• CSS Box Model
• CSS Preprocessors
• Psuedo Class
• Psuedo Element
• Circle
• Semantic HTML
• Head Tag
• Meta Tags
• Div vs Span
• Accessibility
• HTML Structure
• CSS Custom Properties
• CSS Principles
• Install a Font
• Add CSS
• Vendor Prefixes
• Grid vs Flex
• CSS Library
• Z-Index
•  

Speeding Up a Slow App