SKILLS.md

Personal profile of software engineering skills

⬜ Optional, 🟦 Required for all, 🟨 Required for js, 🟩 Learned, 🟥 Declined

Fundamental concepts

Syntax	Statements	Functions	Data structures	Process & style
🟦 value	🟦 if	🟦 recursion	🟦 array	🟦 refactoring
🟦 identifier	🟦 loops	🟦 function	🟦 instance	🟦 code review
🟦 variable	🟦 assignment	🟦 return	🟦 object	🟦 antipatterns
🟦 constant	🟨 prototype	🟦 signature	🟦 collection	🟦 paradigm
🟦 scalar	🟦 class	🟦 argument	🟦 hash table	🟦 algorithm
🟦 literal	🟦 while	🟦 parameter	🟦 linked list	🟦 magic numbers
🟦 expression	🟦 do..while	🟦 pure function	🟦 queue	🟦 hardcode
🟦 heap	🟦 for	🟦 lambda	🟦 stack	🟦 complexity
🟦 type	🟨 for..in	🟦 side effects	🟦 deque	🟦 decomposition
🟦 primitive types	🟨 for..of	🟦 closure	🟦 serialization	⬜️ spaghetti
🟦 reference	🟨 for await	🟦 partial	🟦 mixin, extend	⬜️ silver bullet
🟦 flag	🟦 throw	⬜️ curry	🟨 iterator	⬜️ not invented here
🟦 lexical scope	🟦 try..catch	🟦 chaining	🟨 typed arrays	🟦 dead code
🟦 code block	🟦 equality operators	🟦 higher order	🟨 Map	🟦 unreachable code
🟨 Object	🟦 logical operators	🟦 callback	🟨 Set	🟦 duplicate code
🟨 this	🟦 bitwise operators	🟦 listener	⬜️ weak collections	🟦 exception
🟨 arrow function	🟦 break, continue	⬜️ pipe	⬜️ Proxy	🟦 return early
🟨 generator	🟦 switch	⬜️ memoize	⬜️ Symbol	🟦 linter
🟨 async function	🟨 new Error	🟦 factory	🟨 string parsing	⬜️ prettier
🟨 call, bind, apply		🟦 pool	🟨 timers	🟦 unittest
🟨 Array		🟦 wrapper	🟨 EventEmitter	🟦 git
🟨 instanceof		🟨 default parameters	🟨 RegExp	🟦 github
🟨 ...spread			🟨 global	🟨 node.js
🟨 ...rest			🟨 undefined	🟨 npm
🟨 typeof			🟦 null

Multi-paradigm programming

Theory	OOP basics	Abstractions	Patterns
🟦 Procedural programming	🟦 constructor	⬜ struct, record	🟦 Singleton
🟦 Imperative programming	🟦 new	⬜ Mutable state
🟦 Structured programming	🟦 Static method	⬜ Immutable state
🟦 Non-structured programming	🟦 Method	⬜ Enum
🟦 Functional programming	🟦 Async method	🟦 Linked list
🟦 Prototype-based programming	🟦 Getters, Setters	🟦 Doubly list
🟦 Object-oriented programming	🟦 Public fields	🟦 Unrolled list
⬜ Object-based programming	🟦 Private fields	🟦 Circular list
🟦 Generic programming	🟦 Field declarations	🟦 Trees
🟦 Concurrent computing	🟦 Inheritance	🟦 Graphs
🟦 Asyncronous programming	🟦 Parent class	🟦 Functor
🟦 Parallel programming	🟦 Polymorphism	🟦 Functional object
🟦 Reactive programming	🟦 Abstract class	⬜ Monad
⬜ FRP (Functional-reactive)	🟦 Interface	🟦 Generator
🟦 Automata-based programming	🟦 Encapsulation	🟦 Iterator
🟦 Domain-specific languages	⬜ Hidden class	🟦 Async Iterator
🟦 Multi-paradigm programming	⬜ Object form
⬜ Metaprogramming	🟦 instance
⬜ Actor model	⬜ Introspection
	⬜ Reflection

Asynchronous programming

Async contracts	JavaScript & Node.js specific	Theory	Techniques
🟦 Callback-last	🟦 Timers	🟦 Event Loop	⬜ async.js library
🟦 Error-first	🟦 setImmediate	🟦 Async error	⬜ Async composition
🟦 Promise	🟦 nextTick	🟦 try..catch	⬜ Rx.js
🟦 Async function	⬜ AbortController	🟦 Non-blocking	🟦 Sequential async
🟦 await	🟦 Promise unhandled rejection	🟦 Async I/O	🟦 Parallel async
🟦 Generator	🟦 Promise double resolve	🟦 Pattern Reactor	🟦 Promise.all
🟦 Async Generator	🟦 child_process	⬜ CAS operations	🟦 Promise.allSettled
🟦 Async Iterator	🟦 worker_threads	⬜ epoll	🟦 Promise.race
🟦 Thenable	🟦 Atomics	⬜ kqueue	🟦 Promise.any
🟦 EventEmitter	🟦 Blockeing operations	⬜ Completion ports	⬜ Web Locks API
⬜ Cancelable callback	🟦 Non-blocking loop for Array	⬜ Event ports	⬜ Async Pool
⬜ Cancelable Promise	⬜ High resolution clock	🟦 libuv	⬜ Thread Pool
🟦 Asynchronous Queue	🟦 Callback hell	🟦 Race conditions	🟦 callbackify
⬜ Future	🟦 Promise hell	🟦 Dead locks	🟦 promisify
⬜ Deferred		🟦 Live locks	⬜ IPC
🟦 Observer		⬜ Actor Model	⬜ Channel API
⬜ Async Collector			⬜ Revealing Constructor
⬜ Coroutine
⬜ Goroutine

Node.js and backend

Internals	Theory	Network	Technique	Problems
🟦 Nonblocking I/O	🟦 I/O bound tasks	🟦 HTTP(S)	🟦 Logging	🟦 Memory leaks
🟦 Event Loop	🟦 CPU bound tasks	🟦 TCP/SSL	🟦 Testing	🟦 Resource leaks
🟦 commonjs	🟦 Memory bound tasks	🟦 UDP	⬜ CI/CD	🟦 Blocking code
🟦 ECMA modules	🟦 Multilayer approach	🟦 TLS	🟦 Readable	🟦 Data race
🟦 Network API	🟦 Separation of concerns	🟦 Websocket	🟦 Writable	🟦 Graceful Shutdown
⬜ Addons	🟦 Inversion of control	⬜ SSE	🟦 Transform	🟦 Dependencies
⬜ N-API	🟦 Dependency injection	⬜ HTTP/3 (QUIC)	⬜ back pressure
⬜ Webassembly	🟦 GRASP for JS and Node.js	⬜ Long polling	🟦 Buffer
🟦 npm	🟦 SOLID for JS and Node.js	🟦 REST	🟦 Console
🟦 node_modules	🟦 GoF for JS and Node.js	🟦 RPC	🟦 Inspector
🟦 package.json	⬜ Distributed systems	🟦 Routing	🟦 Reliability
🟦 vm isolation	⬜ Highload applications	🟦 IP sticky	🟦 Quality
🟦 command line args	🟦 DDD	🟦 DoS	🟦 Availability
⬜ Node.js CLI	🟦 Clean architecture	🟦 DDoS	🟦 Flexibility
🟦 Streams	🟦 Domain in the middle	🟦 XSS
🟦 Clustering	🟦 Message Queue	🟦 Path traversal
⬜ Load balancing	🟦 Transport-agnostic server	🟦 CSRF
⬜ Serverless clouds	🟦 Framework-agnostic app	🟦 DNS
⬜ FaaS clouds	⬜ Interactive applications	🟦 Fetch
🟦 Debugging node.js	⬜ Real-time applications	🟦 zlib
🟦 crypto	🟦 CQS and CQRS
⬜ SharedArrayBuffer	🟦 Event Sourcing
🟦 child_process	🟦 Shared memory
🟦 worker_threads