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		🟩 Async I/O	🟦 Parallel async
🟩 Generator		🟦 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