This repository was created with the intention of helping developers master their concepts in JavaScript. It is not a requirement, but a guide for future studies. It is based on an article written by Stephen Curtis.

Table of Contents

• Call Stack
• Primitive Types
• Value Types and Reference Types
• Implicit, Explicit, Nominal, Structuring and Duck Typing
• == vs === vs typeof
• Function Scope, Block Scope and Lexical Scope
• Expression vs Statement
• IIFE, Modules and Namespaces
• Message Queue and Event Loop
• setTimeout, setInterval and requestAnimationFrame
• JavaScript Engines
• Bitwise Operators, Type Arrays and Array Buffers
• DOM and Layout Trees
• Factories and Classes
• this, call, apply and bind
• new, Constructor, instanceof and Instances
• Prototype Inheritance and Prototype Chain
• Object.create and Object.assign
• map, reduce, filter
• Pure Functions, Side Effects and State Mutation
• Closures
• High Order Functions
• Recursion
• Collections and Generators
• Promises
• async/await
• Data Structures
• Expensive Operation and Big O Notation
• Algorithms
• Inheritance, Polymorphism and Code Reuse
• Design Patterns
• Partial Applications, Currying, Compose and Pipe
• Clean Code

Rails Long Term Support

Rails LTS provides security patches for old versions of Ruby on Rails (2.3, 3.2, 4.2 and 5.2)

• Prevents you from data breaches and liability risks
• Upgrade at your own pace
• Works with modern Rubies

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