JavaScript

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#dom-manipulation #json #asynchronous-programming #browser-behavior #utility-functions #concurrent-rendering
fromdeath and gravity
4 hours ago
JavaScript

DynamoDB crash course: part 3 - design patterns

Composite keys and single-table design use key formats and prefixes to enable access patterns while managing DynamoDB modeling complexity and feature limits.
JavaScript
fromInfoQ
2 days ago

Stragglers, Not Failures: How Adaptive Hedged Requests Reduce p99 Latency by 74 Percent

Stragglers drive p99 latency in fan-out systems, and retries worsen them by adding load to already-slow backends.
JavaScript
fromGrahamdumpleton
6 days ago

Per-instance lru_cache using wrapt - Graham Dumpleton

wrapt.lru_cache provides a thin wrapper around functools.lru_cache that correctly handles instance methods without changing caching behavior or eviction semantics.
JavaScript
fromGrahamdumpleton
6 days ago

Reshaping decorated functions with wrapt - Graham Dumpleton

wrapt provides decorators that modify runtime introspection so tools see the wrapper’s calling and coroutine shape, not the wrapped target’s.
#css-animations
JavaScript
fromFrontendmasters
2 weeks ago

How to Control Infinite CSS Animations (Part 2 of 2)

Use a paused infinite linear rotation plus a hover-triggered transition to create smooth braking starts and smooth stops.
JavaScript
fromSmashing Magazine
1 week ago

Advanced Tree Counting: Mathematical Layouts With sibling-index() And sibling-count() - Smashing Magazine

Use sibling-index() and sibling-count() to compute per-item animation delays in CSS without nth-child rules or JavaScript, supporting any list length.
JavaScript
fromFrontendmasters
2 weeks ago

How to Control Infinite CSS Animations (Part 2 of 2)

Use a paused infinite linear rotation plus a hover-triggered transition to create smooth braking starts and smooth stops.
JavaScript
fromSmashing Magazine
1 week ago

Advanced Tree Counting: Mathematical Layouts With sibling-index() And sibling-count() - Smashing Magazine

Use sibling-index() and sibling-count() to compute per-item animation delays in CSS without nth-child rules or JavaScript, supporting any list length.
more#css-animations
JavaScript
fromDevOps.com
2 weeks ago

Capturing Real API Behavior for Regression Testing: Architecture and Implementation - DevOps.com

Regression tests often encode assumptions about expected behavior, while production reveals actual behavior; recording real API behavior closes the gap and catches integration failures earlier.
JavaScript
fromInfoQ
2 weeks ago

The Mathematics of Backlogs: Capacity Planning for Queue Recovery

Backlog recovery time depends on surplus processing capacity; exact steady-state provisioning yields no recovery, and small utilization changes can cause large queue growth.
#javascript
JavaScript
fromCsswizardry
9 months ago

Obs.js: Context-Aware Web Performance for Everyone - CSS Wizardry

Obs.js provides early, inline browser-signal detection to set html classes and window.obs properties for adaptive UI, media, motion, and analytics decisions.
fromCSS-Tricks
2 weeks ago
JavaScript

Soon We Can Finally Banish JavaScript to the ShadowRealm | CSS-Tricks

JavaScript execution is single-threaded per realm, while multiple realms like Web Workers enable parallel threads within one application.
JavaScript
fromCsswizardry
9 months ago

Obs.js: Context-Aware Web Performance for Everyone - CSS Wizardry

Obs.js provides early, inline browser-signal detection to set html classes and window.obs properties for adaptive UI, media, motion, and analytics decisions.
JavaScript
fromCSS-Tricks
2 weeks ago

Soon We Can Finally Banish JavaScript to the ShadowRealm | CSS-Tricks

JavaScript execution is single-threaded per realm, while multiple realms like Web Workers enable parallel threads within one application.
more#javascript
JavaScript
fromStreetsblog USA
3 weeks ago

Friday Video: What Your Refrigerator Can Teach You About Saving Lives on the Roads - Streetsblog USA

Protected bike lanes and safety devices use forcing functions to prevent harmful behavior and reduce injuries by addressing root causes.
JavaScript
fromNist
3 weeks ago

NVD

Math.js versions 13.1.0 to 15.1.9 contain a vulnerability allowing arbitrary JavaScript execution through the expression parser, fixed in version 15.2.0.
JavaScript
fromPagegym
3 weeks ago

Minifying JavaScript: how much are we saving?

Minification significantly reduces JavaScript transfer size, improving page speed, especially by removing comments and optimizing code.
JavaScript
fromInfoQ
4 weeks ago

Vitest 4.1: Test Tags, Native Node.js Execution and AI Agent Reporter

Vitest 4.1 enhances JavaScript testing with new features like test tags, lifecycle hooks, and improved type inference.
JavaScript
fromRaymondcamden
1 month ago

Animated video backgrounds via a Web Component and ColorThief

ColorThief library enables color extraction from video frames for dynamic background effects.
JavaScript
fromPython GUIs
1 month ago

PyQt6 Thread Communication Between Windows - Signals and Slots

Use Qt's signal and slot system for safe communication between secondary windows and background threads.
JavaScript
fromGitHub
1 month ago

GitHub - russellromney/honker: SQLite extension + bindings for Postgres NOTIFY/LISTEN semantics with durable queues, streams, pub/sub, and scheduler

Honker adds Postgres-style NOTIFY/LISTEN semantics to SQLite, enabling durable pub/sub and task queues without client polling or a separate broker.
fromYcombinator
1 month ago
JavaScript

Show HN: PushToPost - Automate social posts and SEO changelogs from Git pushes | Hacker News

PushToPost automates social posts and changelogs by analyzing GitHub diffs using webhooks and JSON-LD schema for better indexing.
JavaScript
fromInfoQ
1 month ago

C++26: Reflection, Memory Safety, Contracts, and a New Async Model

C++26 introduces reflection, enhances memory safety, adds contracts, and establishes a unified framework for concurrency and parallelism.
JavaScript
fromTheregister
1 month ago

GitHub recalls Phabricator with preview of Stacked PRs

GitHub's Stacked PRs feature simplifies the review process for large pull requests by allowing them to be organized in a manageable stack.
JavaScript
fromRubyflow
1 month ago

Practical CSS: simplifying UI code with pseudo-classes

CSS pseudo-classes can simplify UI interactions by handling presentation logic, allowing JavaScript to focus on behavior.
JavaScript
fromInfoWorld
1 month ago

Rust team warns of WebAssembly change

Undefined symbols in WebAssembly can lead to unexpected behavior and errors, necessitating better diagnostics for developers.
JavaScript
fromInfoWorld
1 month ago

27 questions to ask when choosing an LLM

Model performance is crucial for hardware compatibility, speed, and rate limits in real-time applications.
JavaScript
fromPythonSpeed
1 month ago

Timesliced reservoir sampling: a new(?) algorithm for profilers

Random sampling from an unknown-length event stream can effectively identify relevant information without storing all data.
JavaScript
fromMedium
2 months ago

Metaprogramming: teaching the compiler to explain your data.

Contextual information enhances debugging by providing field names, types, and nested structures.
fromMedium
2 months ago

7 Essential Claude Code Slash Commands

/copy command allows users to copy the session output to their clipboard, facilitating easy sharing and reuse of generated content.
JavaScript
fromRaymondcamden
2 months ago

Finding Your Most Popular Bluesky Followers

I've built a number of demos already using Bluesky's APIs, and for the most part, they're easy to use and "just work" - which is all you want from an API. That was my expectation going into this little demo, but what I was really surprised by was the fact that everything I needed to do could be done without any authentication at all. I didn't need oAuth, I didn't need an API key, I just hit public endpoints and everything just worked.
JavaScript
JavaScript
fromSmashing Magazine
2 months ago

Moving From Moment.js To The JS Temporal API - Smashing Magazine

JavaScript's date/time handling evolved from the limited Date API to Moment.js and now to Temporal, a new standard that addresses previous limitations and provides superior flexibility for modern applications.
JavaScript
fromDEV Community
2 months ago

I Built an npm Package and Tracked Every Download for Two Weeks. Here's the Data.

textlens, a zero-dependency text analysis toolkit, achieved 977 downloads in week one but dropped 94% to 63 downloads in week two, settling at 16 daily downloads versus competitors' 2,100 daily downloads.
fromSubstack
2 months ago

Friday Links #36: JavaScript, AI Tools, and Ecosystem Updates

The TypeScript team released an early preview of TypeScript 6. This release is mainly about internal changes preparing for the future Go-based compiler planned for TypeScript 7. Large monorepos could see dramatic speed improvements once the Go compiler lands.
JavaScript
fromSearch Engine Roundtable
2 months ago

Google Search Console BigQuery Exports Broken

What's up with the GSC BigQuery exports? I've got and hearing a lot about failed exports for over a week now.
JavaScript
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