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?? ????? ?? ??? ???????? What is a pure function? Higher-order-function(????) with Kotlin Currying ??? ?????: partial application? curry ??, ?? ??, ??? ??????? ????(Hoisting) ??? ?? ?? ?? ??? - ???? ???? ?? ?? ??? - ??? ??/?? ??? ?????? ?? ?? ?? ???? 80% ?? ? - ???? ? ?? ?? 8??? ???? ??? ??? ???? ?? ?? ?? ??? [Jest] ????? ???: test.each(), describe.each() ?? ???(Unit Testing)?? ??? ??? ????? (feat. ???? ???) Test Double ?? ??? ???? ??? ??(Test Double) Classical vs Mockist testing Mock Object? ????? Testing Without Mocks: A Pattern Language What's the difference between a mock & stub? Mocks Aren't Stubs ???? ???? ?? Stub ?? ??? ??? Exression verses Statement Static/Dynamic vs Strong/Weak Runtime vs Compile time A Python Tutorial To Understanding Scopes and Closures Difference between Definition and Declaration What is the difference between statically typed and dynamically typed languages? ???? What is Short Circuiting? ?????? ???? ?? AST LLVM ???? Advanced C: The UB and optimizations that trick good programmers. ???? ??? ??? ????? ?? ????? The super tiny compiler How I wrote a self-hosting C compiler in 40 days Building a Programming Language in Twenty-Four Hours ??? ?? ??? ?? ?? Refactoring guru : design patterns Singleton So Singletons are bad, then what? Repository Pattern Repository Design Pattern repository pattern vs ORM Stop using repository pattern with an ORM Don't use DAO, use Repository Difference between Repository and Service Layer? DI(Dependency Injection, ??? ??) What is dependency injection? Dependency Injection Demystified DI ?? Dependency Injection in Python Inversion of Control Containers and the Dependency Injection pattern ??? ??? ?? ??? ?? ???? ?? Hexgonal Architecture Spring Boot Kotlin Multi Module? ????? ???? ???? ?? ?? ??/?? ????? ??? ??, ??, ??, ??? ??? #hackerlaws Why Premature Optimization Is the Root of All Evil Why is global state so evil? ?????? SOLID ?? ????? Red-Green-Refactor Clean architectures in Python: a step-by-step example Clean Code: 5 Essential Takeaways ?? ???? ??? ? ?????? ?? ?? SaaS Sonarqube Scrutinizer Code Climate ???? ????? ???? ?? 5? ??: SOLID Parametric Polymorphism ?? ??? ???(Static Factory Method)? ? ????? Anti-OOP : if ? ??? ??? ?? ??? ???? ?? ???? ?? Memoization WTF is Memoization What is the difference between Caching and Memoization? Replacement Cache??? Eviction, Expiration, Passivation What is difference between LRU and LFU? Cache Strategy Caching ?? ?? ? ?? ?? ?? Tracing: structured logging, but better in every way ????? ?? Python Glossary awesome-python Fundamentals ?????? ??? ??? ?????(_)? ??? Python getitem? slice? ?? ???? ?? ?? ???? ???? ??? ?? ???? ???? ?? ???? ????? Hidden features of Python Strings in Python What is __pycache__? What is the meaning of single and double underscore before an object name? Difference between and Is there a difference between “raise exception()” and “raise exception” without parenthesis? What is the difference between range and xrange functions in Python 2.X? List comprehension vs map Is PYTHONUNBUFFERED=TRUE a good idea? Python equivalent of golang's defer statement Python - Disable output buffering ignoring backslash character in python Nicest way to pad zeroes to a string How to re-raise an exception in nested try/except blocks? Sort a list by multiple attributes? How can the built-in range function take a single argument or three? Why True/False is capitalized in Python? Why is bool a subclass of int? In python, why use logging instead of print? Why is the order in dictionaries and sets arbitrary? wtfpython Python 3.x rounding behavior How to round float 0.5 up to 1.0, while still rounding 0.45 to 0.0, as the usual school rounding? Behaviour of increment and decrement operators in Python Removing duplicates in lists Difference between append vs. extend list methods in Python Concurrent/Async Programming ??? ??? Intro to Threads and Processes in Python ???? ??? ???? API – Concurrent.futures asyncio : ?? ??? ??? Nonblocking ??? ??? ?? ?? What does the “yield from” syntax do in asyncio and how is it different from “await” Blocking-NonBlocking-Synchronous-Asynchronous ??? ????? ?? ?? (asyncio) ?????? Python ??? ??? ????? ???? ??? 6 — Coroutine async for ??? ?? ?? Internals Exponentials in python x ** y vs math.pow(x, y) Dismissing Python Garbage Collection at Instagram Python GIL Python GC? ???? ?? __slots__ magic How did Python implement the built-in function pow()? Memory Management in Python - Part 3: Object Lifetimes and Garbage Collection Performance Analysis of Python’s dict() and {} Why Do Python Lists Multiply Oddly? Exploring the CPython Source Code Better way Better Python 59 Ways The Hitchhiker’s Guide to Python Intermediate Python A collection of design patterns/idioms in Python Writing Python like it's Rust Stop using utcnow and utcfromtimestamp Version specific Summary of Major Changes Between Python Versions 3.7 Why is Python 3.7 fastest dataclasses Python 3.7’s new builtin breakpoint?—?a quick tour 3.8 What's coming in Python 3.8 You Should Be Using Python's Walrus Operator - Here's Why Code Style Google Python Style Guide Linter pycodestyle flake8 pylint pyflake Formatter autopep8 yapf Black Environment ?? ?? ? ??? pyenv pyenv-win virtualenv Python Virtualenv pyenv-virtualenv Package management pipenv pipenv? ???? pipenv? Python ???? ???? Force pipenv to create a new virtualenv How to get pipenv running in docker? poetry Poetry? ??? ??? ??? ?? uv astral-sh/uv Testing ?? ????? - The Hitchhiker's Guide to Python ???? ??? ??? 92% ??? Advanced Python testing techniques How should I verify a log message when testing Python code under nose? Assert that logging has been called with specific string pytest A Beginner's Guide to Unit Testing with Pytest Libraries SQLAlchemy SQLAlchemy ???? - Part 1 SQLAlchemy ???? - Part 2 SQLAlchemy?? ?? ???? ?? ?? ??? ORM Basic Relationship Patterns SQLAlchemy's "Lazy" Parameter Column and Data Types synonym Connection SQLAlchemy: engine, connection and session difference Avoiding boilerplate session handling code in SQLAlchemy functions Contextual/Thread-local Sessions Dealing with duplicate primary keys on insert in SQLAlchemy SQLAlchemy Transaction ?? Practice ?? Unbind object from session Session Management - Refreshing / Expiring How to close sqlalchemy connection in MySQL Query SQLAlchemy?? ??? ? ??? ?? ???? ?? ??? ?? ?? Literal SELECT Query ??? WHERE? ????(Common filter operators) How to pass a not like operator in a sqlalchemy ORM query sqlalchemy.orm.query.Query.slice(start, stop) How to union two subqueries in SQLAlchemy How to execute raw SQL in SQLAlchemy 'select as' in SQLAlchemy SQLAlchemy simple example of sum, average, min, max Get the number of rows in table using SQLAlchemy What's the difference between filter and filter_by in SQLAlchemy? How to implement a default condition in all SQLAlchemy's queries SQLAlchemy Docs - ORM Events - Query Events Internals [SQLAlchemy] SQL Compilation Caching Peewee Dynamically defining a database How to custom the table name in peewee? Performing simple joins Joining multiple tables boto3 When to use a boto3 client and when to use a boto3 resource? boto3 - credentials Upload-Download File From S3 with Boto3 How do I get the file/key size in boto S3? Go Fundamentals ???? ??? ?????? Java Fundamentals Evolution of Strings in Java to Compact Strings and Indify String Concatenation Garbage Collection Java Garbage Collection ZGC? ?? ?? ???? Node.js Ryan Dahl: ?? Node.js? ?? ???? ? 10??(JSConf EU, 2018) no-return-await ? ?? ???? Better way Promise Pool? ?? ???? (feat. Promise.all) Environment Package ??? ? ??? ???? Yarn Berry ??? npm, yarn, pnpm ????? Yarn ?? pnpm?? ??? 3?? ?? ????? ??? ?? ??: ??? ? ?? ??? ??? Version Manager fnm: Fast and Simple Node.js Version Manager Code Style ESLint? AST? ?? ??? ??? Libraries TypeORM TypeOrm 0.3.X ????? Rust ??? ?????? ?? ??? ?? Gotcha ????? ???? ?? ??? ?? progate AI Generative AI for Beginners ?? ?? Tech Debt Isn't a Burden, It's a Strategic Lever for Success ??? TDD ??? ?? ???? Realizing quality improvement through test driven development: results and experiences of four industrial teams DDD Kakao Tech : ???? DDD ??? ????? ?? ??? ?? ???? ?? FSM ?? ?? ??(Finite State Machine) Regex ?????? ??? ?? ?? regexr - RegEx Playground ??? ??? ??? ???? ?? ??? HTML? ?? ?????? ??? ? ???? ignore case sensitivity A comprehensive guide to the dangers of Regular Expressions in JavaScript ?????? ?? ???, ??? ? ???. ?? ??? ?? ???? Hash Bloom Filters Explained BloomFilter? ?? ???? Tree ??(Tree) - ??? ??(Trie tree) ?? ??? ?? ??? ?? ??? ??? ???? ?? ??? ?? ??? ???? The Algorithms Khan Academy - Algorithm ?? ??? ???? Dijkstra’s Shortest Path Algorithm in Python Levenshtein Distance ?? ? ?? ????? ???? Quick-Sort Tim sort? ?? ???? ???? 2023 ??? ?? ?? 1? ??? ?? ??? for Tech developers ???? 2023 ??? ?? ?? 2? ??? ?? ??? for Tech developers ???? Python - ??? ?? ?? ?? ??? ??? ?? ???? ???? ???? ???? ???? ??? ?? ?? ???? ?? Race condition ????? Mutex lock?? ???? ??? KLED: ???? ???? ?? ?? ????? ?? ?? ??????????? ?????????? ???? ????????? ?????????????? ????? ?? ??? ??? ????? Build a search index in Python ???? ??? ???? ?? ?? ?? ???? ??? ?? ?? ???? ???? ?? ?? ??? ???? Top-Down?? ???? ???? What are the advantages and disadvantages of using a content delivery network(CDN)? How did I get here? Load Balancing Load Balancing ?????(Load Balancing)? ????(HA) Load Balancing And Rate Limiting for Dummies (Part 1) ???? ???? ?? SSD (Coding for SSD) DNS Demystifying DNS for web developers DNSimple ????? ?? ???? How to Write Awesome Tech Specs 2023-04?? ???? ???? ??? ? ?? ????? ? ??? ?? ???? ??? ????? ?? What is the maximum length of a valid email address? Date & Time ISO 8601 What's the difference between ISO 8601 and RFC 3339 Date Formats? Date? ??? ?? ??? ??????? ?? ???(UTC) ??? ?? List of tz database time zones DateTimeFormat(Joda-Time) Deep Dive into DateTime The 2038 Problem Locale en_US or en-US, which one should you use? Identifier What Is a UUID and How Are They Generated? UUIDv7 in 33 languages Image Learn Images Text The Absolute Minimum Every Software Developer Must Know About Unicode in 2023 (Still No Excuses!) Identifying ???? ????? ? CI, DI ?? ?? ? ?? What are the differences between server-side and client-side programming? Local-First Web Development (??) 2023? ? ?? ??? 10?? HTTP CORS Understanding CORS Developers don't understand CORS Webserver What is the difference between application server and web server? Difference between proxy server and reverse proxy server Polling/Websocket/etcs Spring Websocket & STOMP WebSocket? Socket.io Websockets vs Long Polling Ajax Polling vs Long-Polling vs WebSockets vs Server-Sent Events HTTP/2 Server Push vs Websockets vs Server-Sent Events SSE? ??? ??? ?? Scalable Websocket Architecture HTTPS How HTTPS Works ?? ? ??? ???? Adaptive HTTP Streaming Web API Pagination with the 'Timestamp_ID' Continuation Token ??? ?? ngrok?? ?? ????? ?? ?? HTTP API HTTP API development tools Security API Security Checklist-ko Design Principle How to (and how not to) design REST APIs The Little Manual of API Design JSON:API Standard GET?? POST? ??? ???? HTTP ???? ?? ????? RESTful API Design. Best Practices in a Nutshell. REST API Design: Filtering, Sorting, and Pagination Best Practices for Designing a Pragmatic RESTful API How to design REST API for export endpoint? Is using magic (me/self) resource identifiers going against REST principles? RESTfully design /login or /register resources? Best way to implement a restful toggle-action? REST REST API ??? ?? ???? ?? REST API? ???? ?? REST API? ???? - ???? ?? REST API? ???? - ?? REST ? Uniform Interface? ??? Architectural Styles and the Design of Network-based Software Architectures - Roy Fielding ?? ????? ?? REST ?? ?? REST API? ???, HATEOAS Richardson Maturity Model GraphQL So what’s this GraphQL thing I keep hearing about? GraphQL? ???? Designing GraphQL Mutations HTTP2/HTTPS HTTPS? HTTP?? ??? ?? ??? ?? HTTP2 HTTP/2 ?? - Google Developers HTTPS? ??? ???? ??/?? JWT Introduction to JSON Web Tokens OAuth ?? API? ??? ??? ?? (oauth 2.0) Learn OAuth 2.0 by Building Your Own OAuth Client IAM Casbin Authorization Policy Showdown: RBAC vs. ABAC vs. ReBAC Open-Sourcing AWS Cedar is a Gamechanger for IAM Framework Python Flask example flask-realworld-example-app flask-large-application-example boilerplate flask-base fbone cookiecutter-flask flask-foundation flask-rest-template flask-appbuilder Guide Flask 1.0 Quickstart Flask 1.0 ?? ???? Flask 1.0?? ??? ? Patterns for Flask 1.0 Pynash: Proxy objects in Flask (and elsewhere) What is the purpose of Flask's context stacks? Signals FastAPI Why I'm Leaving Flask FastAPI? ??. ??? Flask ????? fastapi-best-practices Migrating from Flask to FastAPI How to profile a FastAPI asynchronous request FastAPI: Depends ???? Building Custom Middleware in FastAPI Java/Kotlin Spring Tutorial ?????? ? ??? ???? Gradle + SpringBoot + Travis CI + Coveralls + ???? ???? ??? ?? 2.0 ???? ?? ??? ?? ??? ? ??? ?? ? Auth JWT ?? ??? ?? ?? ? ?? ?? ?? ???? Architecture MVC ???? service? serviceImpl? ? ???? ???? ??? ? ?????? ?? JPA Alternative to JPA Logging ??? ??? ?? Performance Jedis ?? Lettuce? ?? Configuration [spring-boot] 2.4 ?? ??? ???? ???? ???? Docs ?? ?? API? ?? ??? - Spring REST Docs ???? [Kotlin] Spring Rest Docs ???? build.gradle.kts OpenAPI Specification? ??? ?? ???? API ??? Testing [Kotlin] Kotlin DSL + Spring REST Docs + MockMvc ??? (2) ? Kotest? ???? ??? Node API ???, TS ??? ??? ??! – Tspec Express Express?? Sequelize? ??? ? Circular Import Problem? ???? ?? - sequelize/express-example NestJS NestJS ??? ?? Custom Decorator ??? ? ????? ? ????? ???? | PoiemaWeb Index fun Fundamental ???? ???? Polyfill ???? Environment ????? ?? ?? ????? (2023) History ????? ??? ??, ?? ?? ... ??? ??? ????? ????? [??] 2016?? ??????? ??? ? Useful Service Nocode Webflow Hosting Surge Netlify Vercel Optimization ?? ?? ?? ??? ???? - Feat. Safari & Edge functions Optimize Time to First Byte FE ????? 1?: ???? FE ????? 2?: ??? ????? React Learning React ?? ??? ?? ???? ??? ??? React Bit Awesome React Components ??? ?? ???? ??? ??? React ?? Vue ??? [??] React? ????? ?? ? ?? ?? 6?? React ????? ???? ?? ?????? ? React ?? ?? When a rewrite isn’t: rebuilding Slack on the desktop ?? ?? Recoil? ??? ??? ???? CSS ????? ? ???? ?? PostCSS PostCSS webpack3 + postcss ???? SaaS Sass ?? - ? ?? ?? FlexBox (??) CSS flex box 3??? ??? ??? ?? ???? flexbox? ?? ? ?? 10?? ???? TypeScript ??(Reddit)? Typescript? ??? ?? Conditional types in Typescript WebStorm ?? VSCode ? TypeScript ???? ??? ??? (with Jest) Announcing TypeScript 5.0 ??? Low-code Supabase | The Open Source Firebase Alternative Pocketbase | Open Source backend 1 in file Architecture [??? ?: ???] SPOF ?? ?? MMORPG ?? [??? ?: ???] ?? ???? Vol. 2 (??) DEVIEW 2016 ?? ?? ?? ??? ?? ??? ???? ? ?? ??? ?? ? ?? ??? ??? The Architecture Behind A One-Person Tech Startup ?? ?? ??? ??? ??? ??? ?? ?? ?? Serverless Architecture ???? ????(Serverless)?? Ticket Servers: Distributed Unique Primary Keys on the Cheap CDC ?? ? ? ??(feat. B2B ?? ???? Kafka CDC ????) Real-time Messaging - Slack Engineering Startup Infrastructure: Scaling from Zero to Enterprise Rate Limiting Visualizing algorithms for rate limiting Troubleshooting The Case of the Mysterious AWS ELB 504 Errors AWS Timeouts: A Detective Story System Design System Design Interview: Scalable Unique ID Generator (Twitter Snowflake or a similar service) System Design: Design a Geo-Spatial index for real-time location search System Design Primer ByteByteGoHq/system-design-101 ByteByteGo Rate Limiting Visualizing algorithms for rate limiting Microservice Circuit breaker ??? ??? ??? ?? MSA ??? ???? Python ?? ??? ???? ????? Circuit Breaker ??? ?? 5 Microservices Design Patterns Every DevOps Team Should Know Data Pipeline ?? ????? ???? ?? ??? ??? ??? - Airflow Advanced ??? BigQuery ??? - 1? Message Queue AWS SQS? Lambda ???? ?? (Set Visibility Timeout) Choose Postgres queue technology Realtime Multiplay How Figma’s multiplayer technology works An Interactive Intro to CRDTs Ready Player Two Distributed System awesome-distributed-systems Multi-Region Active-Active for Multi-Regional Resiliency Partitioning Strategies Consistent Hashing Consistent hashing Everything You Need to Know About Consistent Hashing Consistency Model CAP Theorem CAP and PACELC : the basic theorem of distributed database system CAP Theorem for System Design Interviews CAP Twelve Years Later - How the "Rules" Have Changed By Eric Brewer Vector Clock [Amazon Dynamo] Vector Clock? Quorum vote ?? ?? Consensus Protocols Paxos Paxos Made Simple Gossip Gossip Protocol Raft ID Generation Announcing Snowflake by Twitter Distrubted DB ScyllaDB ScyllaDB ?? ?? ??? - NoSQL? ScyllaDB [Scylla] ???? ?? ?? NoSQL? Architecture ScyllaDB University CockroachDB CTO? ???? ?? ?? ???? ???? DB? ???? ??? CockroachDB in Production Vitess Vitess. CNCF Study in NaverLabs Benchmark ab - HTTP ?? ???? ? wrk Insight ?? ?? ?? ??? - ????? ipify: 300? ?? ??, ? ??? ??? ?? ??? ??? ??? ???: ?? ? ???? Postmortem 2022? 1? 100% ?? ??? ?? ?? Protocol gRPC Microservices with gRPC Operation SRE SRE Checklist Scenarios ??? ???(Split Brain) ?? Recovery/Failover Failover & Disaster Recovery What is failover? What is High Availability? Disater Recovery Strategies Deploy Blue/Green Deployment: What It Is and How it Reduces Your Risk GitOps Already learned DevOps? Great, now it’s time for GitOps FinOps ???? ????? AWS ?? ??? ??? Automation Cloudformation AWS CloudFormation?? ??? ??? ???? Ansible Ansible 101 Ansible (???) ??, ?? ?? ??, ?? ??? ?? Terraform ??? (Terraform) ?? ?? ? AWS ???? ???? ???(Terraform) ?? ???? - AWS? ????? ???? Infrastructure as Code Terraform? ??? Infrastructure as Code ?? ???? Ansible vs Terraform: Fight! Monitoring SaaS runscope statuspage.io Stacks ELK The Complete Guide to the ELK Stack - 2018 How To Install The ELK Stack - 2021 TICK Time Series Database and Tick Stack Container Docker Fundamental ? ?? ??(????)? ?? ???? Explaining Docker with Pizza ???? ?? Docker ??? ?? ?? ??? Docker images - types. Slim vs slim-stretch vs stretch vs alpine Docker ??? ?? ???? How to mount a single file in a volume How to enter in a Docker container already running with a new TTY Docker run vs create Docker VOLUME vs COPY vs ADD Automation of container creation and creating image with DB packed Guide ??? ?? ?? ??? - 1. ??? ????? ??? ?? ?? ??? - 2. ???? ???? ???? ??? ?? ?? ??? - 3. ??? ??? ???? ??? ??? ???? ??? ???? Intro Guide to Dockerfile Best Practices Compose Tool kitematic Orchestration Docker (Compose) ??? ?? ???? 5? ?? ??? ????(feat. fly.io) Kubernetes Kubernetes Learning Roadmap Kubernetes CronJob? ??? ?? ? ?? ????? 2023? ????? ?? ???? Database What is an ORM and where can I learn more about it? What are OLTP and OLAP. What is the difference between them? MySQL timestamp ? Y2K38 Problem Database Fundamentals Operation Backward compatible database changes Migration ???? ?? ???? ???? AWS DMS ??? - feat. RDS ?? ??? RDB Fundamental Transaction DBMS? ??? ????? ????? Lock?? ???? Transaction? Isolation Level Index How do database indexes work? How does database indexing work? What do Clustered and Non clustered index actually mean? Database Indexing Strategies ??(index)? ? ?? ?? : LSM ?? & B ?? Normalization A Detailed Guide to Database Denormalization with Examples View Why do you create a View in a database? What are the materialized views? Lock ??(Gap Lock)? ??? ? ?(Next-Key Lock) Sharding/Partitioning How does database sharding work? DB ????(Partitioning)?? ????? ShardingSphere-Proxy ??? How to scale your database and when to shard Sharding Pinterest: How we scaled our MySQL fleet Sharding & IDs at Instagram The growing pains of database architecture Pattern Are soft deletes a good idea? Next-Level Database Techniques For Developers Are junction tables a good practice? The Slotted Counter Pattern Reduce MySQL Memory Utilization with ProxySQL Time Ranges without Overlapping Pagination in MySQL Optimize ?????? ???(Database Selectivity) What are Covering Indexes and Covered Queries in SQL Server? Vendors MySQL Query MySQL Orderby a number, Nulls last Illegal mix of collations for operation 'like' Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_general_ci,IMPLICIT) for operation '=' How to declare a variable in MySQL? How to show the last queries executed on MySQL? How can I stop a running MySQL query? DDL MySQL UNIQUE key not working MySQL ?? ? ?? ?? MySQL cannot create foreign key constraint varchar Fields - Is a Power of Two More Efficient? MySQL Integers: INT, BIGINT, and more MySQL data types: VARCHAR and CHAR Indexing JSON in MySQL Understanding Generated Columns Structure Understanding MySQL Storage Engines A graph a day, keeps the doctor away ! – MySQL History List Length Tips MySQL ??? ?? ??? ? ? 17?? MySQL 5.7 FullText Search ???? with ngram MySQL FullText Search, ??? ???? Performance MySQL ????? How to read MySQL EXPLAINs Transaction MySQL8 skip locked / nowait ???? When to use SELECT … FOR UPDATE? Fault Tolerance ??? ??? XtraBackup ??? MySQL MHA(Master High Availability) Fault Tolerance ????? ?? PostgreSQL Just Use Postgres for Everything PostgreSQL Vacuum? ?? ?? ?? ? A BEGINNERS GUIDE TO POSTGRESQL’S UPDATE AND AUTOVACUUM Nine ways to shoot yourself in the foot with PostgreSQL Create an advanced search engine with PostgreSQL Postgresql Sequence vs Serial How does COPY work and why is it so much faster than INSERT? PrestoDB Date and Time Functions and Operators Presto equivalent of MySQL group_concat SQLite SQLite Internals SQL What is a stored procedure? SQLBolt - Learn SQL with simple, interactive exercises. DML INSERT SELECT ??? INSERT ?? Insert into a MySQL table or update if exists SELECT Multiple select statements in Single query Query Plan What is a query planner? SQLite : ??? ?? ??? WHERE ORDER BY JOIN Review of SQL JOINS LEFT JOIN vs. LEFT OUTER JOIN in SQL Server MySQL ON vs USING? Functions When is a timestamp (auto) updated? INTERVAL UPDATE DELETE DDL CHECK UNIQUE NoSQL Why NoSQL Scales better than SQL Search Engine Meilisearch Meilisearch 1.0: the next stage in search ElasticSearch Query Query and filter context ElasticSearch bool query combine What is the difference between must and filter Query DSL in ElasticSearch? ElasticSearch match vs term query Source filter Terms Aggregation Term level query - range query Exclude empty-string, null and non-existant Best way to check if a field exist in an Elasticsearch document OLAP Druid RocksDB How RocksDB Works Cache Redis Redis ??, ?? ??, ??? ??? ?? RDB & AOF ?? ? ??? Redis ?? ?? ?? Build Your Own Redis ??? ????? ?? ??? ???? ??? ??? Flutter ??? ???? ????? Flutter ???? ??? ?????? ??? ?? Flutter ??? ?? ? ?? - ?? 1? ?? ?, ? ?? Recode Android Android ?? ??? Android? HTTP ????? ????? Using Retrofit 2.x as REST client Retrofit 2? ???? ?? ?? HTTP Firebase? ?? ??? ???? ???? ??? ? ?? ?? Android? ORM Android? ????? ????? Android ? ??? ??? ????? BadTokenException? ??? ???? Android? ?? ?? ?????? MVC, MVP, MVVM ?? ??? AWS codebuild + codecov ? ???? android CI ???? ?? ????? ???? ??? (Android) epoxy Use Android Jetpack to Accelerate Your App Development iOS ????? ????? ????? ???? AWS AWS 101 : Regions and Availability Zones ??? ECS ECS Fargate ?? ???? ?? ???? VPC ???? ??? AWS VPC ?? ???? S3 ?? ?? ?? - ?? IP ?? ??? ?? ?? ?? ?? - Amazon CloudFront ??? ?? ??? ?? ?? How Canva saves millions annually in Amazon S3 costs ??? ?? CodeStar AWS CodeStar? 1? DevOps ?????? CodeBuild Environment variables not being set on AWS CodeBuild CodeDeploy AWS CodeDeploy? ?? ?? ??? ??, ?? ?? aws-vault ???: AWS? ?? ?? ???? ???? What every developer should know about aws vault IAM Difference between IAM role and IAM user in AWS ???? Newral Networks Deconvolution and Checkerboard Artifacts Neural Networks: Zero to Hero ?? Jamsync - rsync??? ?? ??? ??? ?? ?? kakao Tech : ???? ????? ?? ???? ?? ?? ?? ?? LINE Engineering : ???? ?? ??? ??? Google ?? ?? ??? : ??? ??? ?? ?? Git Fundamental What is .gitignore exactly? git? ????? ??? ?? ??? ? ? ???? Commits are snapshots, not diffs Command git blame git rebase -i ???? ??? ?????? Git ??? ???? How to How can one change the timestamp of an old commit in Git? How to change the commit author for one specific commit? Guide ?? git commit ???? ?? ?? ?? ? ?? Git ?????? ??? Troubleshooting Oh shit, git! How to resolve merge conflict during pull request? How do I update a GitHub forked repository? .gitignore is ignored by Git git not displaying unicode file names Advanced Git as debugging tool GitHub Pull Request? ??? ?? ??? ??? ?? ?? GitHub? Pull Request? ??? ???? Reviewing proposed changes in a pull request ????? Linux export, echo ??? lsof ??? grep ??? awk ??? htop Explained Visually Crontab ??? ??? ??? sudo, su, su - ??? ??? TCP ???? ??? ???? ?? ???? ??? Mac How does Coconut Battery determine a Macbook battery's design capacity? ??/??? ????? ???(Software disenchantment) ????? ??? ??? ? ????? [??] ?? ???? ?? ??? ?? Cognitive Biases in Programming ?? 20 Things I’ve Learned in my 20 Years as a Software Engineer ??? ????? ???? ??? ???: ???? ?? 3?? ??? ?? 1. ?????? ?? - ? ???? ???? ??? ? ??? ??? ?????? ? ? ?? ????? The Tech Promotion Algorithm: A Structured Guide to Moving Up A Bunch of Programming Advice I’d Give To Myself 15 Years Ago ?? ???? ?????? ?? ??? ? ?? ?????? ???? The Forty-Year Programmer ?????? ????? ???? ?? ?????? ?? ?? ?? ?? vs ?? ?? ?? ? ?? ?? ??? ? ?? ?? ???? ?????? ?? ?: ???? ??? ??? ???? ???? Professional ???? ?? ?? ???? ??? ?? ?? 1% ????? 7?? ??? ?? ?? 2021? CTO ?? by ?? ??? ?? Developer Imposter Syndrome Avoiding burnout as an ambitious developer ?? ??? 44bits.io GeekNews ?? ???? Android WebToon Web Frontend velog-client Backend pyconkr-api SpaceX-API velog-server Whole Service Corona Warn App ?? ???? JSON ????? JSON ???? jq - ?? ??? ?? ?? ?? 1? ??? JSON ????? NDJSON Newline delemited JSON is awesome JSON Lines JSONSchema JSONSchema object - pattern properties object - Schema dependencies JSON Schema: verifying object's values, without keys MQTT How does MQTT protocol work? RSS RSS 2.0 specification Protobuf Protobuf Google Protocol Buffers and HTTP Makefile What does @: (at symbol colon) mean in a Makefile? Streaming HLS How HLS Works ?? ??? Markov Chains - The University of Auckland From “What is a Markov Model” to “Here is how Markov Models Work” ??? IEEE 754 - Rounding Rules Bankers Rounding Glossary Drop-in replacement Falsehood awesome-falsehood ?? ?? Cracking encrypted Lastpass vaults How They Bypass Youtube Video Download Throttling Exploiting the iPhone 4, Part 1: Gaining Entry I looked through attacks in my access logs. Here's what I found BoF ?? ????? ??? ? Buffer Overflow? ?? ???? HTTP Permanent URL Hijack Through HTTP 301 Redirect Cache Poisoning ? ??? ?? ? ????? ?? ?? ??? ??? ???? ?? Operation Infisical: ???? ??? ?? ??? Insight South Korea’s online security dead end ??? ?? ??? ???? ??? ??(Customer)? ?? ??(Audience)? ??? ?? ?? ??? What is a tracking link? ???? ???? ??? ?? ???? ??? ???, ???? ??? ??? SEO ???????(SEO) ?? ??? Zero-Click Search ??, 65%? ??? ???? ???? Black Hat - White Hat SEO ‘?? ???’ ??? ??? ?? ???? ?? ???? ?? SEO ?? UA User Acquisition - appsflyer User Acquisition - Adjust Re-engagement Re-Engagement Retargeting What is the difference between re-engagement and re-targeting? ?? ?? ??? ?? ??? ?? ? ARPU / ARPPU DAU/MAU DAU/MAU Ratio DAU/MAU? ?? ??? ? ? ??. Retention ???? ???? ? ?? ?? ?? Single-Touch vs. Multi-Touch Marketing Attribution Reattribution ???? ???? ??? ???? ?? ?? ? ??, ?????? ???? ?? ????? ?? ??? ? ??, ? ??? ??? (NAVER) ???? ????? ??? ???? ?? ?? ??? ??? B2B SaaS?? ????? ?????? ? ??? ?? ??? ? ??? ??? ????? 7?? ?? ?? ? ?? ?? ?? ??? ????? ?? ???? The Scoop: Inside Fast’s Rapid Collapse ???? ?? ?? ?, ?? ?? MVP ????? ?? ? ?? ????? ?? ?? We Don't Sell Saddles Here ?? ?? ???? ?? ??? ?????? ????? 7 Powers: ??? ?? Product ??? ??? ????? ???? ?? B2B ???? ????? ?? ?? ? B2B ????? ?? ????? ??? ??? ?? ?? How to develop product sense ??? ??? ???? ?? ?? Management ?????PM ???? ?????! UI/UX ???! ??? UI/UX?! Why is Vertical Rhythm an Important Typography Practice? ??/?? ??? ???? ????? ?? ???? ??? ? ????? ?? ? ? ???? ?? ?? ??? ?? ? ?? ??? Co-working Management HR? ??? (1) '??'? ???? ??? ?? '??? ?'? ??? ??? Manager's Playbook Delegation 101: Figuring out what to delegate ??? ? ?? ?? ? ?? ?? ??? ??? ?? ???? CTO? ? ?? ?? ?? ???? ??? ??? ?? ? ??? ??? ??? ????? ???? ????, ????, ??? ???? ?? ?? ??? ???? ????? ?? ???? "??? ?? ?? ???"? ??? ?? ?? ?? ??? ?? How notion hires ??? ??? Dreyfus Model Engineering Ladders ?? ?? '?? ??'? ???? ??? ?? ????? ????? ??? ? ??? ?? ?? ???? ??? ??? 12?? ?? ??? ?? ??? ?? ?? Why Development Teams are Slow ??? ????? ?? ??? ??. ???? ???? ??? ?? ??? ??? ??? ?? ???? ???? ??? ???? ????? ?? - ???? ???? ??? ?? ?? ??? ??? ?? ?????? ???? ?? ?? Aligning the company growth ???? ?? ?? ???? ??? ??? ?? ???? ??? ??, ??? ??? ???? ?????? ?? ?????? ?? ??? ?? ?? ??, ????! ?? ??? ?, ??? ?, ??? ? ?? ???: ??? ?? ??? ?? ?? ??? ????? ?? ???? ?? ?? ???? ??? ?? ??? ??? ?? ???? ???? ??? ??? ??? ?? ??? ?? ??? ?? ??? ?? ? ? ?? ?? ??? ????, ???? ???? ??? ??? ?? 10% ?? ?? ?? 90% ??? ????? ???? ???, ?? ?? ? ??? ? ??? ??? ?? ?? ??? ????? (ft. ??? ??) ? ? ?? ???? ???? ??? ???? ??? ??, ??? ?????


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