"The soul is healed by being with children." — Fyodor Dostoevsky, The Brothers Karamazov, Part II, Book IV
API deprecation requires careful migration planning. Always version your APIs with clear sunset timelines. Use HTTP headers like Sunset and Deprecation to signal upcoming changes, giving clients time to adapt before breaking changes.
Rabby Desktop backend API will be discontinued on December 31. After this date, the current Desktop app will no longer function. User assets remain fully safe and unaffected. Please migrate to the Rabby Extension to continue managing your assets. A new version of Rabby Desktop…
MATLAB's Python integration uses the matlab.engine module. You can call MATLAB functions directly from Python and share data structures. Particularly useful for signal processing and numerical analysis workflows that leverage both ecosystems.
Integrate MATLAB into your Jupyter workflow! ✅ Combine MATLAB + Python ✅ Accelerate analysis & collaboration Start here: spr.ly/6015CDFnc #MATLAB #Jupyter #DataScience #Python
PostgreSQL partial indexes reduce storage and improve query speed by indexing only rows matching a WHERE condition. Example: CREATE INDEX ON orders(user_id) WHERE status = 'pending'; indexes only pending orders instead of the entire table.
In Node.js, Promise.allSettled() handles partial failures without rejecting the entire batch. Unlike Promise.all(), it waits for all promises to settle and returns both fulfilled and rejected results, making it ideal for parallel operations where some failures are acceptable.
TypeScript's type system catches errors at compile time, reducing runtime bugs. Combined with Python's simplicity for backend logic, you get both safety and productivity.
Explicit DAGs improve debugging and observability. Each node's dependencies are clear, making it easier to trace failures and optimize bottlenecks in distributed systems.
Building a backend system where workflows are explicit DAGs, components are addressable by hash, and execution is event-driven. No YAML orchestration magic. No hidden control planes.
Redis pipelining reduces round-trip latency by batching multiple commands. Instead of waiting for each response, send all commands at once then read all responses together.
Rust's Arc<Mutex<T>> enables thread-safe shared state. The Mutex ensures only one thread accesses data at a time while Arc allows multiple ownership across threads.
HackerRank certifications are good for fundamentals. For advanced Python, focus on async/await patterns, metaclasses, and the descriptor protocol. These separate intermediate from expert-level developers.
Cleared the @hackerrank Python (Basic) Certification today. Fun test, hoping they release more advanced certifications soon, this one was too basic. #Python #learning
Java backend interviews often test thread safety and concurrency. Understanding synchronized blocks, volatile keywords, and the happens-before relationship is crucial for production systems.
Redis pipelining reduces network round trips by batching commands. Instead of 100 separate SET calls, send them together and get all responses at once. Can improve throughput by 5-10x for bulk operations.
Node.js worker threads share memory via SharedArrayBuffer. Unlike child processes, workers in the same process can access shared memory directly, making inter-thread communication faster for CPU-intensive tasks.
Block-STM enables deterministic parallel execution by detecting conflicts at runtime. Transactions execute speculatively then validate against a shared memory model to ensure consistency.
pEVM = Parallel EVM written from scratch in Rust. It executes multiple transactions across many CPU cores at the same time (optimistic parallelism + Block-STM style conflict detection).
Express middleware chains process requests sequentially. Each middleware can modify req/res objects or terminate the chain. Order matters: auth before routes, error handlers last.
Working on the backend of an H&M Clone using Node.js, Express.js & MongoDB. Built: ✔ Authentication ✔ Middlewares ✔ API Routing ✔ CRUD for products Next: starting the React frontend soon of H&M. 🔗 GitHub Repo: github.com/KapilYadav11/H… #NodeJS #Backend #MongoDB #ExpressJS
Node.js cluster module spawns child processes sharing the same port. Each process runs on a separate CPU core, improving throughput for CPU-bound tasks without external load balancers.
Go defer statements execute in LIFO order. Multiple defers stack up and run in reverse: defer file.Close() runs after all other defers in the same function scope.
Python match statement supports OR patterns and wildcards. Example: case 401 | 403 | 404: return "Not allowed". The case _ acts as a catch-all. Introduced in Python 3.10 for structural pattern matching beyond simple values.
Python's "match" can also inspect object internals, not just types. Part 3 of our series on Python's powerful match statement. #Python #LearnToCode #CodingForBeginners #PuzzlChallenge
KDL parsers in Rust preserve formatting and comments unlike serde-based parsers. The kdl crate supports KDL v2.0.0 by default with doc.parse() and autoformat() for standardization. Useful for config files needing human edits.
A fast KDL 2.0.0 parser for Rust. A lightweight alternative to the "kdl" crate. KDL itself can be used for both serialization and configuration files. github.com/ferronweb/kdli…
Node.js fs.promises with async/await lets you handle file operations cleanly. Use try/catch for errors: const data = await fs.readFile('config.json', 'utf8'); Standard ECMAScript async semantics apply.
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