List of Frontend Questions
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App Design
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JSON Parsing
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Frontend System Design
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- Requirements
- Architecture
- Data Model
- Interface Design
- Optimization
- Design Auto Complete Component
- Design Message Application
- Design Google Calendar
- Design Asana (Diagram/Video Available - Write Up Coming Soon)
- Design Amazon (Coming Soon)
- Design Facebook (Coming Soon)
- Server Side Rendering vs Client Side Rendering
- Frontend Security
- XSS vs CORS
- Preventing XSS
- Image Caching Strategies
- Broadcast Channels
- IndexedDB
- Core Web Vitals
- Accessibility
- Aria Roles
- Network requests
- Polling Vs Web Sockets VS Server Side Events Cheat Sheet
- Image Optimizations Strategies
- Apollo Cache
- Normalized vs Non Normalized Data Structures
Javascript Specific Questions
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- Throttle
- Debounce
- Flatten 1.5
- Flatten II
- Flatten III
- Flatten III.5
- Flatten Any IIII
- Deep Equals
- Array methods
- Debounce II
- Debounce III
- Throttle II
- "this" Methods
- EventTarget
- Curry Function
- Compose Function
- Create DOM
- Promisify
- Testing Framework
- Promise Methods
- Memoize
- Flatten IV
- Top K
- Exclude Items
- String Repeater
- Next Right Sibling
- K Most Frequently Appeared Text Nodes
- NodeStore
- Virtual DOM I
- Virtual DOM II
- Virtual DOM III
- Text Highlighter
- RequestAnimationFrame
- Parser for Rich Text Editor
- ClearAllTimeouts
- ClearAllIntervals
- Set Interval with Linear Delay
- Rate Limiter
- API Confirmation
- Asynchronous Request Queue
- Event Logger
- RxJS Observable
- Intersection Observer
- Event Emitter
- Event Emitter II
- Deep Clone
- Traverse DOM
- Phone Number Parser
- Stream
- Classnames
- getElementsByClassName
- querySelectorAll
General Algorithmic Frontend Questions
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Frontend Topics You Must Know
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- Intro
- Propagation
- Progressive enhancement vs Graceful degradation
- How does "this" work?
- Prototypal Inheritance
- null vs undefined vs undeclared
- Closures
- Array Methods
- Call vs Apply
- Event Bubbling
- Hoisting
- Event Delegation
- CORS
- Props and State
- Lifecycle Methods
- Differences between various Instantiations
- let, var, and const
- Rest vs Spread Operators
- “resetting” vs “normalizing” CSS
- Block Formatting Context
- Anonymous Functions
- “Attribute” VS “Property”
- Host Objects vs Native Objects
- Mutable VS Immutable
- Synchronous VS Asynchronous
- Higher-Order Function
- Classical Inheritance VS Prototypal Inheritance
- Functional programming vs object-oriented programming
- Lexical
- ES6 maps over objects
- Sets vs Arrays
- Destructuring an object or an array
- ES6 Template Literals
- Curry functions
- ES2015
- Functional/integration test
- Linting
- DNS, HTTP
- Programming paradigms
- Functional Programming
- PureComponent
- Higher-order components
- React Hooks
- React reconciliation
- Scale A Website
- Polyfill
- "use strict"
- Block vs inline elements
- typeof, instanceof, and Object.prototype.toString
- Reflow vs repaint
- Critical Rendering Path
- Inserting DOM Elements
- SASS/LESS
- Micro vs Macro tasks
- Handling Memory Leaks
- HTTP GET and POST requests
- Classical inheritance
- Prototypal inheritance
- Asynchronous calls
- Function declarations and expressions
- Semantic markup
- Tag attributes
- Object.create vs new