Frontend interview checklist

1. Javascript theory

Call stack

• 📜 Understanding Javascript Call Stack, Event Loops — Gaurav Pandvia

• 📜 Understanding the JavaScript Call Stack — Charles Freeborn

• 📜 Javascript: What Is The Execution Context? What Is The Call Stack? — Valentino Gagliardi

• 📜 What is the JS Event Loop and Call Stack? — Jess Telford

• 📜 Call Stack — MDN

• 📜 Understanding Execution Context and Execution Stack in Javascript — Sukhjinder Arora

• 📜 How JavaScript Works: An Overview of the Engine, the Runtime, and the Call Stack — Alexander Zlatkov

• 📜 The Ultimate Guide to Execution Contexts, Hoisting, Scopes, and Closures in JavaScript — Tyler McGinnis

• 🎥 Javascript: the Call Stack explained — Coding Blocks India

• 🎥 The JS Call Stack Explained In 9 Minutes — Colt Steele

• 🎥 JavaScript Execution Stack — Codecademy

• 🎥 What is the Call Stack? — Eric Traub

• 🎥 The Call Stack — Kevin Drumm

• 🎥 Understanding JavaScript Execution — Codesmith

• 🎥 Call Stack & Event Loop — movies com

• 🎥 The Ultimate Guide to Execution Contexts, Hoisting, Scopes, and Closures in JavaScript — Tyler McGinnis

• 🎥 What the heck is the event loop anyway? — Philip Roberts

Primitive Types

• 📜 How numbers are encoded in JavaScript — Dr. Axel Rauschmayer

• 📜 What You Need to Know About JavaScript Number Type — Max Wizard K

• 📜 What Every JavaScript Developer Should Know About Floating Point Numbers — Chewxy

• 📜 The Secret Life of JavaScript Primitives — Angus Croll

• 📜 Primitive Types — Flow

• 📜 (Not) Everything in JavaScript is an Object — Daniel Li

• 📜 JavaScript data types and data structures — MDN

• 📜 Diving Deeper in JavaScripts Objects — Arfat Salman

• 📜 The differences between Object.freeze() vs Const in JavaScript — Bolaji Ayodeji

• 🎥 JavaScript Reference vs Primitive Types — Academind

• 🎥 JavaScript Primitive Types — Simon Sez IT

• 🎥 Value Types and Reference Types in JavaScript — Programming with Mosh

• 🎥 JavaScript Primitive Data Types — Avelx

• 🎥 Everything you never wanted to know about JavaScript numbers — Bartek Szopka

• 🎥 What are variables in Javascript? — JS For Everyone

Value Types and Reference Types

• 📜 Explaining Value vs. Reference in Javascript — Arnav Aggarwal

• 📜 Understand Value and Reference Types in JavaScript — Zsolt Nagy

• 📜 Primitive Types & Reference Types in JavaScript — Bran van der Meer

• 📜 Value Types, Reference Types and Scope in JavaScript — Ben Aston

• 📜 Back to roots: JavaScript Value vs Reference — Miro Koczka

• 📜 Grasp “By Value” and “By Reference” in JavaScript — Léna Faure

• 📜 JavaScript Reference and Copy Variables — Vítor Capretz

• 📜 JavaScript Primitive vs Reference Values

• 📜 JavaScript by Reference vs. by Value — nrabinowitz

• 🎥 Javascript Pass by Value vs Pass by Reference — techsith

• 🎥 JavaScript Value vs Reference Types — Programming with Mosh

Implicit, Explicit, Nominal, Structuring and Duck Typing

• 📜 What you need to know about Javascript's Implicit Coercion — Promise Tochi

• 📜 JavaScript Type Coercion Explained — Alexey Samoshkin

• 📜 Javascript Coercion Explained — Ben Garrison

• 📜 What exactly is Type Coercion in Javascript? - Stack Overflow

• 📜 You Don't Know JS: Types & Grammar [Book] — Kyle Simpson

• 📜 Type Coercion in JavaScript, and why everyone gets it wrong.

• 🎥 == ? === ??? ...#@^% - Shirmung Bielefeld

• 🎥 Coercion in Javascript - Hitesh Choudhary

• 🎥 JavaScript Questions: What is Coercion? - Steven Hancock

• 🎥 Typing: Static vs Dynamic, Weak vs. Strong - Codexpanse

== vs === vs typeof

• 📜 JavaScript Double Equals vs. Triple Equals — Brandon Morelli

• 📜 Should I use === or == equality comparison operator in JavaScript? — Panu Pitkamaki

• 📜 == vs === JavaScript: Double Equals and Coercion — AJ Meyghani

• 📜 Why Use the Triple-Equals Operator in JavaScript? — Louis Lazaris

• 📜 What is the difference between == and === in JavaScript? — Craig Buckler

• 📜 Why javascript's typeof always return "object"? — Stack Overflow

• 📜 Checking Types in Javascript — Toby Ho

• 📜 How to better check data types in JavaScript — Webbjocke

• 📜 Checking for the Absence of a Value in JavaScript — Tomer Aberbach

• 🎥 JavaScript - The typeof operator — Java Brains

• 🎥 Javascript typeof operator — DevDelight

Function Scope, Block Scope and Lexical Scope

• 📜 The battle between Function Scope and Block Scope — Marius Herring

• 📜 The Difference Between Function and Block Scope in JavaScript — Joseph Cardillo

• 📜 Function Scopes and Block Scopes in JavaScript — Samer Buna

• 📜 Understanding Scope and Context in JavaScript | Ryan Morr

• 📜 JavaScript Scope and Closures — Zell Liew

• 📜 Understanding Scope in JavaScript — Wissam Abirached

• 📜 Speaking JavaScript - Variables: Scopes, Environments, and Closures — Dr. Axel Rauschmayer

• 📜 Understanding Scope in JavaScript ― Hammad Ahmed

• 📜 When to use a function declaration vs. a function expression ― Amber Wilkie

• 🎥 What Makes Javascript Weird ... and Awesome pt. 4 — LearnCode.academy

• 🎥 Variable Scope in JavaScript — Kirupa Chinnathambi

• 🎥 JavaScript Block Scope and Function Scope — mmtuts

• 🎥 What the Heck is Lexical Scope? — NWCalvank

Expression vs Statement

• 📜 All you need to know about Javascript's Expressions, Statements and Expression Statements — Promise Tochi

• 📜 Function Expressions vs Function Declarations — Paul Wilkins

• 📜 JavaScript Function — Declaration vs Expression — Ravi Roshan

• 📜 Function Declarations vs. Function Expressions — Mandeep Singh

• 📜 Function Declarations vs. Function Expressions — Anguls Croll

• 🎥 Expressions vs. Statements in JavaScript — Hexlet

• 🎥 JavaScript - Expression vs. Statement — WebTunings

• 🎥 Function Statements and Function Expressions — Codeacademy

IIFE, Modules and Namespaces

• 📜 Mastering Immediately-Invoked Function Expressions ― Chandra Gundamaraju

• 📜 Do ES6 Modules make the case of IIFEs obsolete?

• 📜 A 10 minute primer to JavaScript modules, module formats, module loaders and module bundlers ― Jurgen Van de Moere

• 📜 Modules ― Exploring JS

• 📜 ES modules: A cartoon deep-dive — Lin Clark

• 📜 Understanding ES6 Modules — Craig Buckler

• 📜 An overview of ES6 Modules in JavaScript — Brent Graham

• 📜 ES6 Modules in Depth — Nicolás Bevacqua

• 📜 ES6 modules, Node.js and the Michael Jackson Solution — Alberto Gimeno

• 📜 JavaScript Modules: A Beginner’s Guide — Preethi Kasireddy

• 📜 Using JavaScript modules on the web

• 📜 JavaScript Modules: From IIFEs to CommonJS to ES6 Modules — Tyler McGinnis

• 🎥 Immediately Invoked Function Expression - Beau teaches JavaScript — freeCodeCamp

• 🎥 Understanding JavaScript IIFE

• 🎥 JavaScript Modules: ES6 Import and Export — Kyle Robinson

• 🎥 ES6 - Modules — Ryan Christiani

• 🎥 ES6 Modules in the Real World — Sam Thorogood

• 🎥 ES6 Modules — TempleCoding

Message Queue and Event Loop

• 📜 JavaScript Event Loop Explained — Anoop Raveendran

• 📜 The JavaScript Event Loop: Explained — Erin Sweson-Healey

• 📜 What is the Event Loop in Javascript — WP Tutor.io

• 📜 Understanding JS: The Event Loop — Alexander Kondov

• 📜 Understanding the JavaScript Event Loop — Ashish Gupta

• 📜 Event Loop in Javascript — Manjula Dube

• 📜 The JavaScript Event Loop — Flavio Copes

• 📜 How JavaScript works: Event loop — Alexander Zlatkov

• 📜 Tasks, microtasks, queues and schedules — Jake Archibald

• 📜 Visualising the JavaScript Event Loop with a Pizza Restaurant analogy — Priyansh Jain

• 🎥 What the heck is the event loop anyway? | JSConf EU — Philip Roberts

• 🎥 JavaScript Event Loop — ComScience Simplified

• 🎥 I'm stuck in an Event Loop — Philip Roberts

• 🎥 In The Loop - Jake Archibald | JSConf.Asia 2018

• 🎥 Desmitificando el Event Loop (Spanish)

setTimeout, setInterval and requestAnimationFrame

• 📜 setTimeout and setInterval — JavaScript.Info

• 📜 Why not to use setInterval — Akanksha Sharma

• 📜 setTimeout VS setInterval — Develoger

• 📜 Using requestAnimationFrame — Chris Coyier

• 📜 Understanding JavaScript's requestAnimationFrame() — JavaScript Kit

• 📜 Handling time intervals in JavaScript - Amit Merchant

• 🎥 Javascript: How setTimeout and setInterval works — Coding Blocks India

• 🎥 setTimeout and setInterval in JavaScript — techsith

• 🎥 JavaScript Timers — Steve Griffith

• 🎥 JavaScript setTimeout, setInterval & clearInterval — DoingITeasyChannel

• 🎥 JavaScript setTimeOut and setInterval Explained — Theodore Anderson

JavaScript Engines

• 📜 JavaScript Engines — Jen Looper

• 📜 Understanding How the Chrome V8 Engine Translates JavaScript into Machine Code — DroidHead

• 📜 Understanding V8’s Bytecode — Franziska Hinkelmann

• 📜 How the V8 engine works? — Thibault Laurens

• 📜 A Brief History of Google’s V8 Javascript Engine — Clair Smith

• 📜 JavaScript essentials: why you should know how the engine works - Rainer Hahnekamp

• 📜 JavaScript engine fundamentals: Shapes and Inline Caches

• 📜 JavaScript engine fundamentals: optimizing prototypes

• 📜 How V8 optimizes array operations

• 🎥 JavaScript Engines: The Good Parts™ — Mathias Bynens & Benedikt Meurer

Bitwise Operators, Type Arrays and Array Buffers

• 📜 Programming with JS: Bitwise Operations — Alexander Kondov

• 📜 Using JavaScript’s Bitwise Operators in Real Life — ian m

• 📜 JavaScript Bitwise Operators — w3resource

• 📜 Bitwise Operators in Javascript — Joe Cha

• 📜 A Comprehensive Primer on Binary Computation and Bitwise Operators in Javascript — Paul Brown

• 📜 How can I understand Bitwise operation in JavaScript?

• 🎥 JavaScript Bitwise Operators — Programming with Mosh

DOM and Layout Trees

• 📜 How To Understand and Modify the DOM in JavaScript — Tania Rascia

• 📜 What’s the Document Object Model, and why you should know how to use it — Leonardo Maldonado

• 📜 JavaScript DOM Tutorial with Example — Guru99

• 📜 What is the DOM? — Chris Coyier

• 📜 Traversing the DOM with JavaScript — Zell Liew

• 📜 Eloquent JavaScript [Book] — The Document Object Model

• 📜 DOM Tree

• 📜 How to traverse the DOM in Javascript — Vojislav Grujić

• 📜 Render Tree Construction — Ilya Grigorik

• 🎥 JavaScript DOM — The Net Ninja

• 🎥 JavaScript DOM Crash Course — Traversy Media

Factories and Classes

• 📜 How To Use Classes in JavaScript — Tania Rascia

• 📜 Javascript Classes — Under The Hood — Majid

• 📜 ES6 Classes — Nathaniel Foster

• 📜 Better JavaScript with ES6, Pt. II: A Deep Dive into Classes ― Peleke Sengstacke

• 📜 Understand the Factory Design Pattern in Plain JavaScript — Aditya Agarwal

• 📜 Factory Functions in JavaScript — Josh Miller

• 📜 The Factory Pattern in JS ES6 — SnstsDev

• 📜 Class vs Factory function: exploring the way forward — Cristi Salcescu

• 📜 How ES6 classes really work and how to build your own — Robert Grosse

• 🎥 JavaScript Factory Functions — Programming with Mosh

• 🎥 Factory Functions in JavaScript — Fun Fun Function

• 🎥 Javascript Tutorial Function Factories — Crypto Chan

this, call, apply and bind

• 📜 How-to: call() , apply() and bind() in JavaScript — Niladri Sekhar Dutta

• 📜 JavaScript’s Apply, Call, and Bind Methods are Essential for JavaScript Professionals — Richard Bovell

• 📜 WTF is this - Understanding the this keyword, call, apply, and bind in JavaScript — Tyler McGinnis

• 📜 Javascript: call(), apply() and bind() — Omer Goldberg

• 📜 The difference between call / apply / bind — Ivan Sifrim

• 📜 Mastering 'this' in JavaScript: Callbacks and bind(), apply(), call() — Michelle Gienow

• 📜 JavaScript’s apply, call, and bind explained by hosting a cookout — Kevin Kononenko

• 📜 How AND When to use bind, call, and apply in Javascript — Eigen X

• 📜 JavaScript .bind() vs .apply() and .call() — Hack Sparrow

• 📜 call() — MDN

• 📜 bind() — MDN

• 📜 apply() — MDN

• 📜 What is 'this' in JavaScript? — Daniel Li

• 📜 Let me explain to you what is this. (Javascript) — Jason Yu

• 📜 Understanding the “this” Keyword in JavaScript — Pavan

• 📜 How to understand the keyword this and context in JavaScript — Lukas Gisder-Dubé

• 📜 This and Bind In Javascript — Brian Barbour

• 🎥 JavaScript call, apply and bind — techsith

• 🎥 JavaScript Practical Applications of Call, Apply and Bind functions— techsith

• 🎥 JavaScript (call, bind, apply) — curious aatma

• 🎥 Understanding Functions and 'this' In The World of ES2017 — Bryan Hughes

• 🎥 bind and this - Object Creation in JavaScript - FunFunFunction

• 🎥 JavaScript Practical Applications of Call, Apply and Bind functions — techsith

• 🎥 JS Function Methods call(), apply(), and bind() — Steve Griffith

new, Constructor, instanceof and Instances

• 📜 JavaScript For Beginners: the ‘new’ operator — Brandon Morelli
• 📜 Let’s demystify JavaScript’s ‘new’ keyword — Cynthia Lee
• 📜 Constructor, operator "new" — JavaScript.Info
• 📜 Understanding JavaScript Constructors — Faraz Kelhini
• 📜 Use Constructor Functions — Openclassrooms
• 📜 Beyond typeof and instanceof: simplifying dynamic type checks — Dr. Axel Rauschmayer
• 📜 What Is the Instanceof Operator in JavaScript — appendTo
• 📜 Function and Object, instances of each other — Kiro Risk

Prototype Inheritance and Prototype Chain

• 📜 Javascript : Prototype vs Class — Valentin PARSY

• 📜 JavaScript engine fundamentals: optimizing prototypes — Mathias Bynens

• 📜 JavaScript Prototype — NC Patro

• 📜 Prototype in Javascript — Sandeep Ranjan

• 📜 Prototypes in JavaScript — Rupesh Mishra

• 📜 Prototype in JavaScript: it’s quirky, but here’s how it works — Pranav Jindal

• 📜 Inheritance and the prototype chain — MDN

• 📜 Understanding JavaScript: Prototype and Inheritance — Alexander Kondov

• 📜 Prototypal Inheritance — JavaScript.Info

• 📜 How To Work with Prototypes and Inheritance in JavaScript — Tania Rascia

• 📜 Master JavaScript Prototypes & Inheritance — Arnav Aggarwal

• 📜 You Don't Know JS [Book] Chapter 5: Prototypes — Kyle Simpson

• 📜 JavaScript’s Prototypal Inheritance Explained Using CSS — Nash Vail

• 📜 Prototypal Inheritance in JavaScript — Jannis Redmann

• 📜 Classical and Prototypical Inheritance in JavaScript — Danny Cornelisse

• 📜 Demystifying ES6 Classes And Prototypal Inheritance ― Neo Ighodaro

• 📜 Intro To Prototypal Inheritance — Dharani Jayakanthan

• 📜 Classes in JavaScript - Explained — Daniel Li

• 📜 You Don't Know JS: this & Object Prototypes — Kyle Simpson

• 📜 Let’s Build Prototypal Inheritance in JS — var-che

• 📜 Objects, Prototypes and Classes in JavaScript — Atta

• 🎥 Javascript Prototype Inheritance — Avelx

• 🎥 JavaScript Prototype Inheritance Explained pt. I — techsith

• 🎥 JavaScript Prototype Inheritance Explained pt. II — techsith

• 🎥 JavaScript Prototype Inheritance Explained — Kyle Robinson

• 🎥 Advanced Javascript - Prototypal Inheritance In 1 Minute

• 🎥 An Overview Of Classical Javascript Classes and Prototypal Inheritance — Pentacode

• 🎥 Object Oriented JavaScript - Prototype — The Net Ninja

• 🎥 Prototype in JavaScript — kudvenkat

• 🎥 JavaScript Using Prototypes — O'Reilly

• 🎥 A Beginner's Guide to Javascript's Prototype — Tyler Mcginnis

• 🎥 Prototypes in Javascript - p5.js Tutorial — The Coding Train

Object.create and Object.assign

• 📜 Object.create() — MDN

• 📜 Object.create in JavaScript — Rupesh Mishra

• 📜 Object.create(): the New Way to Create Objects in JavaScript — Rob Gravelle

• 📜 Basic Inheritance with Object.create — Joshua Clanton

• 📜 Object.create() In JavaScript — GeeksforGeeks

• 📜 Understanding the difference between Object.create() and the new operator — Jonathan Voxland

• 📜 JavaScript Object Creation: Patterns and Best Practices — Jeff Mott

• 📜 Dealing With Objects in JavaScript With Object.assign, Object.keys and hasOwnProperty

• 📜 Copying Objects in JavaScript ― Orinami Olatunji

• 📜 Object.assign() — MDN

• 📜 JavaScript: Object.assign() — Thiago S. Adriano

• 📜 How to deep clone a JavaScript Object — Flavio Copes

• 🎥 Object.assign() explained — Aaron Writes Code

• 🎥 Object.assign() Method — techsith

map, reduce, filter

• 📜 JavaScript Functional Programming — map, filter and reduce — Bojan Gvozderac

• 📜 Learn map, filter and reduce in Javascript — João Miguel Cunha

• 📜 JavaScript’s Map, Reduce, and Filter — Dan Martensen

• 📜 How to Use Map, Filter, & Reduce in JavaScript — Peleke Sengstacke

• 📜 JavaScript — Learn to Chain Map, Filter, and Reduce — Brandon Morelli

• 📜 Javascript data structure with map, reduce, filter and ES6 — Deepak Gupta

• 📜 Understanding map, filter and reduce in Javascript — Luuk Gruijs

• 📜 Functional Programming in JS: map, filter, reduce (Pt. 5) — Omer Goldberg

• 📜 JavaScript: Map, Filter, Reduce — William S. Vincent

• 📜 Arrow Functions: Fat and Concise Syntax in JavaScript — Kyle Pennell

• 📜 JavaScript: Arrow Functions for Beginners — Brandon Morelli

• 📜 When (and why) you should use ES6 arrow functions — and when you shouldn’t — Cynthia Lee

• 📜 JavaScript — Learn & Understand Arrow Functions — Brandon Morelli

• 📜 (JavaScript )=> Arrow functions — sigu

• 📜 Javascript.reduce() — Paul Anderson

• 📜 Why you should replace forEach with map and filter in JavaScript — Roope Hakulinen

• 📜 Simplify your JavaScript – Use .map(), .reduce(), and .filter() — Etienne Talbot

• 📜 JavaScript’s Reduce Method Explained By Going On a Diet — Kevin Kononenko

• 📜 Difference between map, filter and reduce in JavaScript — Amirata Khodaparast

• 📜 Map⇄Filter⇄Reduce↻ — ashay mandwarya

• 📜 Finding Your Way With .map() — Brandon Wozniewicz

• 📜 How to write your own map, filter and reduce functions in JavaScript — Hemand Nair

• 📜 How to Manipulate Arrays in JavaScript — Bolaji Ayodeji

• 📜 How to simplify your codebase with map(), reduce(), and filter() in JavaScript — Alex Permyakov

• 🎥 Map, Filter and Reduce — Lydia Hallie

• 🎥 Functional JavaScript: Map, forEach, Reduce, Filter — Theodore Anderson

• 🎥 JavaScript Array superpowers: Map, Filter, Reduce (part I) — Michael Rosata

• 🎥 JavaScript Array superpowers: Map, Filter, Reduce (part 2) — Michael Rosata

• 🎥 JavaScript Higher Order Functions - Filter, Map, Sort & Reduce — Epicop

• 🎥 [Array Methods 2/3] .filter + .map + .reduce — CodeWithNick

• 🎥 Arrow functions in JavaScript - What, Why and How — Fun Fun Function

• 🎥 Learning Functional Programming with JavaScript — Anjana Vakil - JSUnconf

• 🎥 Map - Parte 2 JavaScript - Fun Fun Function

• 🎥 Reduce basics - Part 3 of FP in JavaScript - Fun Fun Function

• 🎥 Reduce Advanced - Part 4 of FP in JavaScript - Fun Fun Function

Pure Functions, Side Effects and State Mutation

• 📜 Javascript and Functional Programming — Pure Functions — Omer Goldberg

• 📜 Master the JavaScript Interview: What is a Pure Function? — Eric Elliott

• 📜 JavaScript: What Are Pure Functions And Why Use Them? — James Jeffery

• 📜 Pure functions in JavaScript — @nicoespeon

• 📜 Functional Programming: Pure Functions — Arne Brasseur

• 📜 Pure Functions In Javascript — Krunal

• 📜 Making your JavaScript Pure — Jack Franklin

• 📜 To mutate, or not to mutate, in JavaScript

• 📜 Arrays, Objects and Mutations — Federico Knüssel

• 📜 The State of Immutability — Maciej Sikora

• 📜 How to deal with dirty side effects in your pure functional JavaScript — James Sinclair

• 📜 Preventing Side Effects in JavaScript — David Walsh

• 📜 Wielding Pure Functions in JavaScript and Function Composition — Peleke Sengstacke

• 📜 JavaScript: Pure Functions — William S. Vincent

• 📜 Functional programming paradigms in modern JavaScript: Pure functions — Alexander Kondov

• 📜 Understanding Javascript Mutation and Pure Functions — Chidume Nnamdi

• 📜 Functional-ish JavaScript — Daniel Brain

• 🎥 Pure Functions — Hexlet

• 🎥 Pure Functions - Functional Programming in JavaScript — Paul McBride

• 🎥 JavaScript Pure Functions — Seth Alexander

• 🎥 JavaScript Pure vs Impure Functions Explained — Theodore Anderson

• 🎥 Pure Functions - Programação Funcional: Parte 1 - Fun Fun Function

Closures

• 📜 Closures — MDN

• 📜 I never understood JavaScript closures — Olivier De Meulder

• 📜 Closure — JavaScript.Info

• 📜 Understand JavaScript Closures With Ease — Richard Bovell

• 📜 Understanding JavaScript Closures — Codesmith

• 📜 Understand Closures in JavaScript — Brandon Morelli

• 📜 A simple guide to help you understand closures in JavaScript — Prashant Ram

• 📜 Understanding JavaScript Closures: A Practical Approach — Paul Upendo

• 📜 Understanding JavaScript: Closures — Alexander Kondov

• 📜 How to use JavaScript closures with confidence — Léna Faure

• 📜 JavaScript closures by example — tyler

• 📜 JavaScript — Closures and Scope — Alex Aitken

• 📜 Discover the power of closures in JavaScript — Cristi Salcescu

• 📜 Simplified JavaScript: Getting Started with Closures — Code Like A Girl

• 📜 The Ultimate Guide to Hoisting, Scopes, and Closures in JavaScript — Tyler McGinnis

• 📜 Getting Closure — RealLifeJS

• 📜 Understanding Closures in JavaScript — Sukhjinder Arora

• 📜 A basic guide to Closures in JavaScript — Parathan Thiyagalingam

• 🎥 Javascript Closure — techsith

• 🎥 Closures — Fun Fun Function

• 🎥 Closures in JavaScript — techsith

• 🎥 JavaScript Closures 101: What is a closure? — JavaScript Tutorials

• 🎥 Closures — freeCodeCamp

• 🎥 JavaScript Closures — CodeWorkr

High Order Functions

• 📜 Higher-Order Functions — Eloquent JavaScript [Book]

• 📜 Higher-Order Functions in JavaScript — M. David Green

• 📜 Higher Order Functions: Using Filter, Map and Reduce for More Maintainable Code — Guido Schmitz

• 📜 First-class and Higher Order Functions: Effective Functional JavaScript — Hugo Di Francesco

• 📜 Higher Order Functions in JavaScript — John Hannah

• 📜 Higher-order Functions — Richard Bovell

• 📜 Higher Order Functions in JavaScript — Zsolt Nagy

• 📜 Fun With Higher Order Functions In JavaScript — Derick

• 📜 Just a reminder on how to use high order functions — Pedro Filho

• 📜 Understanding Higher-Order Functions in JavaScript — Sukhjinder Arora

• 🎥 JavaScript Higher Order Functions & Arrays — Traversy Media

• 🎥 Higher Order Functions — Fun Fun Function

• 🎥 Higher Order Functions in Javascript — Raja Yogan

• 🎥 Higher Order Iterators in JavaScript — Fun Fun Function

• 🎥 Higher Order Functions in JavaScript — The Coding Train

Recursion

• 📜 Recursion in JavaScript — Kevin Ennis

• 📜 Understanding Recursion in JavaScript — Zak Frisch

• 📜 Learn and Understand Recursion in JavaScript — Brandon Morelli

• 📜 Recursion in Functional JavaScript — M. David Green

• 📜 Programming with JS: Recursion — Alexander Kondov

• 📜 Anonymous Recursion in JavaScript — simo

• 📜 Recursion, iteration and tail calls in JS — loverajoel

• 📜 Understanding Recursion in JavaScript with Confidence — Jay

• 📜 Intro to Recursion — Brad Newman

• 📜 Accio Recursion!: Your New Favorite JavaScript Spell — Leanne Cabey

• 🎥 Recursion In JavaScript — techsith

• 🎥 Recursion — Fun Fun Function

• 🎥 Recursion and Recursive Functions — Hexlet

• 🎥 Recursion: Recursion() — JS Monthly — Lucas da Costa

• 🎥 Recursive Function in JavaScript — kudvenkat

• 🎥 What on Earth is Recursion? — Computerphile

• 🎥 Javascript Tutorial 34: Introduction To Recursion — codedamn

• 🎥 Recursion, Iteration, and JavaScript: A Love Story | JSHeroes 2018 — Anjana Vakil

Collections and Generators

• 📜 ES6 In Depth: Collections — Jason Orendorff
• 📜 ES6 Collections: Using Map, Set, WeakMap, WeakSet — Kyle Pennell
• 📜 ES6 WeakMaps, Sets, and WeakSets in Depth — Nicolás Bevacqua
• 📜 Introduction to Sets in JavaScript — Alligator.io
• 📜 Introduction to Maps in JavaScript — Alligator.io
• 📜 Map, Set, WeakMap and WeakSet — JavaScript.Info
• 📜 Maps in ES6 - A Quick Guide — Ben Mildren
• 📜 ES6 — Set vs Array — What and when? — Maya Shavin
• 📜 ES6 — Map vs Object — What and when? — Maya Shavin
• 📜 ES6: Working with Sets in JavaScript — Dead Code Rising
• 📜 Array vs Set vs Map vs Object — Real-time use cases in Javascript (ES6/ES7) — Rajesh Babu
• 📜 How to create an array of unique values in JavaScript using Sets — Claire Parker-Jones
• 📜 What You Should Know About ES6 Maps — Just Chris
• 📜 ES6 Maps in Depth — Nicolás Bevacqua
• 📜 Generator — MDN web docs
• 📜 What are JavaScript Generators and how to use them — Vladislav Stepanov
• 📜 Understanding JavaScript Generators With Examples — Arfat Salman
• 📜 The Basics of ES6 Generators — Kyle Simpson
• 📜 Here's everything you'd want to know about ES2015+ generators — Lucas Chen

Promises

• 📜 Promise — MDN

• 📜 JavaScript Promises for Dummies ― Jecelyn Yeen

• 📜 Understanding promises in JavaScript — Gokul N K

• 📜 Master the JavaScript Interview: What is a Promise? — Eric Elliott

• 📜 An Overview of JavaScript Promises — Sandeep Panda

• 📜 How to use Promises in JavaScript — Prashant Ram

• 📜 Implementing Promises In JavaScript — Maciej Cieslar

• 📜 JavaScript: Promises explained with simple real life analogies — Shruti Kapoor

• 📜 Promises for Asynchronous Programming — Exploring JS

• 📜 JavaScript Promises Explained By Gambling At A Casino — Kevin Kononenko

• 📜 ES6 Promises: Patterns and Anti-Patterns — Bobby Brennan

• 📜 A Simple Guide to ES6 Promises — Brandon Morelli

• 📜 The ES6 Promises — Manoj Singh Negi

• 📜 ES6 Promises in Depth — Nicolás Bevacqua

• 📜 Playing with Javascript Promises: A Comprehensive Approach — Rajesh Babu

• 📜 How to Write a JavaScript Promise — Brandon Wozniewicz

• 📜 Asynchronous JavaScript | Callbacks | Closures | Promises — Full Stack Geek

• 🎥 Let's Learn ES6 - Promises — Ryan Christiani

• 🎥 JavaScript ES6 / ES2015 Promises — Traversy Media

• 🎥 Promises — Fun Fun Function

• 🎥 Error Handling Promises in JavaScript — Fun Fun Function

• 🎥 Promises Part 1 - Topics of JavaScript/ES6 — The Coding Train

async/await

• 📜 async/await — JavaScript.Info

• 📜 Understanding async/await in Javascript — Gokul N K

• 📜 Asynchronous Programming — Eloquent JavaScript

• 📜 Exploring Async/Await Functions in JavaScript — Alligator.io

• 📜 Asynchronous Javascript using async/await — Joy Warugu

• 📜 Modern Asynchronous JavaScript with async/await — Flavio Copes

• 📜 Asynchronous JavaScript: From Callback Hell to Async and Await — Demir Selmanovic

• 📜 Javascript — ES8 Introducing async/await Functions — Ben Garrison

• 📜 How to escape async/await hell — Aditya Agarwal

• 📜 Understanding JavaScript’s async await — Nicolás Bevacqua

• 📜 JavaScript Async/Await: Serial, Parallel and Complex Flow — TechBrij

• 📜 Asynchronous Programming — Exploring JS

• 📜 From JavaScript Promises to Async/Await: why bother? — Chris Nwamba

• 📜 Flow Control in Modern JS: Callbacks to Promises to Async/Await — Craig Buckler

• 📜 JavaScript: Promises and Why Async/Await Wins the Battle — Nick Parsons

• 📜 How To Master Async/Await With This Real World Example — Adrian Hajdin

• 📜 How to improve your asynchronous Javascript code with async and await — Indrek Lasn

• 📜 Making Fetches Easy With Async Await — Mickey Sheridan

• 🎥 Async + Await — Wes Bos

• 🎥 Asynchrony: Under the Hood — Shelley Vohr

• 🎥 async/await in JavaScript - What, Why and How — Fun Fun Function

• 🎥 async/await Part 1 - Topics of JavaScript/ES8 — The Coding Train

• 🎥 async/await Part 2 - Topics of JavaScript/ES8 — The Coding Train

• 🎥 Complete Guide to JS Async & Await ES2017/ES8 — Colt Steele

2. Practice

Frameworks and libraries

• React
• Angular
• Vue
• Immer / Immutable
• Redux / Reselect
• Unstated
• RXJS
• Express
• Koa
• ...

Algorithms & Data structures

• 📜 Data Structures in JavaScript — Thon Ly

• 📜 Algorithms and Data Structures in JavaScript — Oleksii Trekhleb

• 📜 Data Structures: Objects and Arrays ― Chris Nwamba

• 📜 Data structures in JavaScript — Benoit Vallon

• 📜 Playing with Data Structures in Javascript — Anish K.

• 📜 The Little Guide of Queue in JavaScript — Germán Cutraro

• 📜 All algorithms writing with JavaScript in the book 'Algorithms Fourth Edition'

• 📜 Collection of classic computer science paradigms in JavaScript

• 📜 All the things you didn't know you wanted to know about data structures

• 🎥 Algorithms in JavaScript — Seth Koch

• 🎥 Algorithms In Javascript | Ace Your Interview — Eduonix Learning Solutions

• 🎥 Data Structures and Algorithms in JavaScript — freeCodeCamp

• 🎥 Learning JavaScript Data Structures and Algorithms: Sorting — Packt Video

• 📜 Big O Notation in Javascript — César Antón Dorantes

• 📜 Time Complexity/Big O Notation — Tim Roberts

• 📜 Big O in JavaScript — Gabriela Medina

• 📜 Big O Search Algorithms in JavaScript — Bradley Braithwaite

• 📜 Time Complexity Analysis in JavaScript — Jennifer Bland

• 📜 Algorithms in plain English: time complexity and Big-O Notation — Michael Olorunnisola

• 🎥 JavaScript: Intro to Big O Notation and Function Runtime — Eric Traub

• 🎥 Essential Big O for JavaScript Developers — Dave Smith

• 🎥 Big O Notation - Time Complexity Analysis — WebTunings

• 📜 Data Structures and Algorithms using ES6

• 📜 Algorithms and data structures implemented in JavaScript with explanations and links to further readings

• 📜 JS: Interview Algorithm

• 📜 Algorithms in JavaScript — Thon Ly

• 📜 JavaScript Objects, Square Brackets and Algorithms — Dmitri Grabov

• 📜 Atwood's Law applied to CS101 - Classic algorithms and data structures implemented in JavaScript

• 📜 Data Structures and Algorithms library in JavaScript

• 📜 Collection of computer science algorithms and data structures written in JavaScript

• Complexity

• Sort

• Stack

• ...

OOP

• 📜 Class inheritance, super — JavaScript.Info

• 📜 Inheritance in JavaScript — MDN

• 📜 Inheritance in JavaScript — Rupesh Mishra

• 📜 Simple Inheritance with JavaScript — David Catuhe

• 📜 JavaScript — Inheritance, delegation patterns and Object linking — NC Patro

• 📜 Object Oriented JavaScript: Polymorphism with examples — Knoldus Blogs

• 📜 Program Like Proteus — A beginner’s guide to polymorphism in Javascript — Sam Galson

• 📜 Object-oriented JavaScript: A Deep Dive into ES6 Classes — Jeff Mott

• 🎥 Inheritance in JavaScript — kudvenkat

• 🎥 JavaScript ES6 Classes and Inheritance — Traversy Media

• 🎥 Polymorphism in JavaScript — kudvenkat

Design Patterns

• 📜 4 JavaScript Design Patterns You Should Know — Devan Patel

• 📜 JavaScript Design Patterns – Beginner's Guide to Mobile Web Development — Soumyajit Pathak

• 📜 JavaScript Design Patterns — Akash Pal

• 📜 Javascript Design Patterns: What They Are & How To Use Them — Patrick Simpson

• 📜 JavaScript Design Patterns: Understanding Design Patterns in JavaScript - Sukhjinder Arora

• 📜 All the 23 (GoF) design patterns implemented in Javascript — Felipe Beline

• 📜 Learning JavaScript Design Patterns — Addy Osmani

• 📜 Design Patterns for Developers using JavaScript pt. I — Oliver Mensah

• 📜 Design Patterns for Developers using JavaScript pt. II — Oliver Mensah

• 📜 Design patterns in modern JavaScript development

• 📜 Understanding Design Patterns: Iterator using Dev.to and Medium social networks! — Carlos Caballero

• 🎥 JavaScript Design Patterns — Udacity

• 🎥 JavaScript Patterns for 2017 — Scott Allen

• 📜 Use function composition in JavaScript — Rémi

• 📜 Currying in JavaScript ES6 — Adam Bene

• 📜 Composition and Currying Elegance in JavaScript — Pragyan Das

• 📜 Functional JavaScript: Function Composition For Every Day Use — Joel Thoms

• 📜 Functional Composition: compose() and pipe() — Anton Paras

• 📜 Why The Hipsters Compose Everything: Functional Composing In JavaScript — A. Sharif

• 📜 A Gentle Introduction to Functional JavaScript pt III: Functions for making functions — James Sinclair

• 📜 Curry And Compose (why you should be using something like ramda in your code) — jsanchesleao

• 📜 Function Composition in JavaScript with Pipe — Andy Van Slaars

• 📜 Practical Functional JavaScript with Ramda — Andrew D'Amelio, Yuri Takhteyev

• 📜 The beauty in Partial Application, Currying, and Function Composition — Joel Thoms

• 📜 Curry or Partial Application? — Eric Elliott

• 📜 Partial Application in JavaScript — Ben Alman

• 📜 Partial Application of Functions — Functional Reactive Ninja

• 📜 Currying vs Partial Application — Deepak Gupta

• 📜 Partial Application in ECMAScript 2015 — Ragan Wald

• 📜 Functional Composition in Javascript — Joe Cortopassi

• 📜 So You Want to be a Functional Programmer pt. I — Charles Scalfani

• 📜 So You Want to be a Functional Programmer pt. II — Charles Scalfani

• 📜 So You Want to be a Functional Programmer pt. III — Charles Scalfani

• 📜 So You Want to be a Functional Programmer pt. IV — Charles Scalfani

• 📜 So You Want to be a Functional Programmer pt. V — Charles Scalfani

• 📜 Functional-Light JavaScript Chapter 3: Managing Function Inputs — Kyle Simpson

• 📜 An introduction to the basic principles of Functional Programming — TK

• 📜 Concepts of Functional Programming in Javascript — TK

• 📜 An Introduction to Functional Programming Style in JavaScript — JavaScript Teacher

• 📜 A practical guide to writing more functional JavaScript — Nadeesha Cabral

• 📜 A simple explanation of functional pipe in JavaScript — Ben Lesh

• 🎥 Compose vs Pipe: Functional Programming in JavaScript — Chyld Studios

• 🎥 JavaScript Functional Programing: Compose — Theodore Anderson

• 🎥 Function Composition - Functional JavaScript — NWCalvank

• 🎥 JavaScript Function Composition Explained — Theodore Anderson

• 🎥 Let's code with function composition — Fun Fun Function

• 🎥 Partial Application vs. Currying — NWCalvank

• 🎥 JavaScript Partial Application — Theodore Anderson

Technologies

• Typescript
• Flow
• Node.js
• Electron
• Webpack

Testing

• Jest
• Mocha & Chai
• ...

Profiling & debugging

• Performance
• Measurements
• Optimization
• ...