JavaScript Briefly
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A custom JS feed with less noise and more quality on https://briefly.co/anchor/Javascript Follow us at @brieflytldr.bsky.social
QJS embeds QuickJS compiled to WebAssembly and runs it with Wazero to provide Go applications a sandboxed, CGO-free ES2023 JavaScript runtime with tight interoperability.
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December 28, 2025 at 7:30 AM
QJS embeds QuickJS compiled to WebAssembly and runs it with Wazero to provide Go applications a sandboxed, CGO-free ES2023 JavaScript runtime with tight interoperability.
View transitions can combine with the <dialog> element to create smooth, accessible animated dialog openings using showModal(), dialog.close(), and progressive enhancement.
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December 25, 2025 at 11:59 AM
View transitions can combine with the <dialog> element to create smooth, accessible animated dialog openings using showModal(), dialog.close(), and progressive enhancement.
Draggabilly provides performant, touch-friendly draggable behavior with containment, grid snapping, custom handles, and drag-state styling for any DOM element.
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December 22, 2025 at 2:41 AM
Draggabilly provides performant, touch-friendly draggable behavior with containment, grid snapping, custom handles, and drag-state styling for any DOM element.
Lack of tests is the central cause of legacy code; adding tests and using AI agents can convert legacy code into maintainable, evergreen code.
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November 30, 2025 at 1:12 PM
Lack of tests is the central cause of legacy code; adding tests and using AI agents can convert legacy code into maintainable, evergreen code.
Tries enable fast, structure-aware autocomplete by representing hierarchical tokens as nested nodes instead of relying on naive prefix filtering.
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November 20, 2025 at 6:25 PM
Tries enable fast, structure-aware autocomplete by representing hierarchical tokens as nested nodes instead of relying on naive prefix filtering.
Deliver optimistic CSS that degrades gracefully by removing styles after load and avoid hiding custom elements with :not(:defined), which creates anti-patterns.
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November 19, 2025 at 10:58 PM
Deliver optimistic CSS that degrades gracefully by removing styles after load and avoid hiding custom elements with :not(:defined), which creates anti-patterns.
Browser JavaScript libraries and SDKs (ml5.js, Vercel AI SDK, LangChain) simplify building, integrating, and orchestrating machine learning and LLM applications.
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November 17, 2025 at 9:16 AM
Browser JavaScript libraries and SDKs (ml5.js, Vercel AI SDK, LangChain) simplify building, integrating, and orchestrating machine learning and LLM applications.
GPT-5.1 enhances long-context code reasoning and patch generation, integrates into Codex and IDEs, improves benchmark performance, and introduces 24-hour prompt caching.
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November 14, 2025 at 10:14 AM
GPT-5.1 enhances long-context code reasoning and patch generation, integrates into Codex and IDEs, improves benchmark performance, and introduces 24-hour prompt caching.
XEditable Lite is a lightweight JavaScript library providing modern inline and popup editing compatible with Bootstrap and jQuery, preserving the x-editable API.
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November 14, 2025 at 3:24 AM
XEditable Lite is a lightweight JavaScript library providing modern inline and popup editing compatible with Bootstrap and jQuery, preserving the x-editable API.
Modern front-end frameworks abstract foundational web technologies, causing many developers to miss practical knowledge like XPath, beforeunload, visibilitychange, and CSSOM.
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November 13, 2025 at 8:22 AM
Modern front-end frameworks abstract foundational web technologies, causing many developers to miss practical knowledge like XPath, beforeunload, visibilitychange, and CSSOM.
ES2025 adds pattern matching and a pipeline operator enabling concise, readable, declarative JavaScript control flow and data transformations.
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November 7, 2025 at 10:15 AM
ES2025 adds pattern matching and a pipeline operator enabling concise, readable, declarative JavaScript control flow and data transformations.
A shell provides a text-based interface to the operating system and uses absolute and relative file system paths to locate files and directories.
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November 1, 2025 at 4:26 PM
A shell provides a text-based interface to the operating system and uses absolute and relative file system paths to locate files and directories.
On-screen horizontal and vertical rulers with multiple units, interactive crosshairs, automatic DPI detection, live mouse coordinates, responsive redrawing, and customizable appearance for precise layout measurement.
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November 1, 2025 at 4:10 PM
On-screen horizontal and vertical rulers with multiple units, interactive crosshairs, automatic DPI detection, live mouse coordinates, responsive redrawing, and customizable appearance for precise layout measurement.
Automatically number table rows with customizable formatting, visibility-aware sequencing, bold or leading-zero options, and configurable target column for dynamic, filtered, or sorted tables.
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November 1, 2025 at 4:10 PM
Automatically number table rows with customizable formatting, visibility-aware sequencing, bold or leading-zero options, and configurable target column for dynamic, filtered, or sorted tables.
useHooks provides reusable custom React Hooks that simplify common UI patterns—responsive queries, hover handling, clipboard copying, toggles, idle detection, measurements, localStorage sync, and counters.
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November 1, 2025 at 2:48 PM
useHooks provides reusable custom React Hooks that simplify common UI patterns—responsive queries, hover handling, clipboard copying, toggles, idle detection, measurements, localStorage sync, and counters.
ES11 (ECMAScript 2020) adds ergonomic JavaScript features like optional chaining and globalThis to simplify null checks and cross-environment global access.
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November 1, 2025 at 10:32 AM
ES11 (ECMAScript 2020) adds ergonomic JavaScript features like optional chaining and globalThis to simplify null checks and cross-environment global access.
Vite+ unifies Vite into an all-in-one, Rust-accelerated JavaScript toolchain offering CLI scaffolding, testing, linting, formatting, bundling, monorepo tasks, and devtools.
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November 1, 2025 at 9:16 AM
Vite+ unifies Vite into an all-in-one, Rust-accelerated JavaScript toolchain offering CLI scaffolding, testing, linting, formatting, bundling, monorepo tasks, and devtools.
A fully featured, open-source, configurable calendar with multi-view support, import/export, drag-and-drop, multi-language capabilities, and responsive support within 48 hours.
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October 24, 2025 at 12:17 PM
A fully featured, open-source, configurable calendar with multi-view support, import/export, drag-and-drop, multi-language capabilities, and responsive support within 48 hours.
NaN propagates through arithmetic and comparisons as an error state; NaN is unequal to every value, including itself.
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October 24, 2025 at 12:01 PM
NaN propagates through arithmetic and comparisons as an error state; NaN is unequal to every value, including itself.
Expressions produce values and can be used wherever a value is expected, though JavaScript has rare syntax exceptions.
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October 22, 2025 at 8:43 PM
Expressions produce values and can be used wherever a value is expected, though JavaScript has rare syntax exceptions.
Overreliance on useState leads to scattered, hard-to-maintain React components; model state thoughtfully and consider alternative patterns for larger applications.
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October 21, 2025 at 1:18 PM
Overreliance on useState leads to scattered, hard-to-maintain React components; model state thoughtfully and consider alternative patterns for larger applications.
forEach cannot be interrupted with break, continue, or early return because it executes a callback function rather than exposing loop-level control flow.
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October 21, 2025 at 12:42 PM
forEach cannot be interrupted with break, continue, or early return because it executes a callback function rather than exposing loop-level control flow.
Deno 2.5 introduces permission sets, testing lifecycle hooks, bundle runtime API, WebSocket header improvements, and upgrades to V8 14.0 and TypeScript 5.9.2.
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October 21, 2025 at 12:26 PM
Deno 2.5 introduces permission sets, testing lifecycle hooks, bundle runtime API, WebSocket header improvements, and upgrades to V8 14.0 and TypeScript 5.9.2.
Awaiting inside loops causes sequential execution; use Promise.all to run independent async calls in parallel and use Promise.allSettled or per-promise handling to avoid fail-fast.
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October 20, 2025 at 1:42 PM
Awaiting inside loops causes sequential execution; use Promise.all to run independent async calls in parallel and use Promise.allSettled or per-promise handling to avoid fail-fast.
Hiding essential content with CSS and relying on JavaScript to reveal it risks accessibility and reliability if JavaScript fails, delays, or errors.
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October 16, 2025 at 1:45 PM
Hiding essential content with CSS and relying on JavaScript to reveal it risks accessibility and reliability if JavaScript fails, delays, or errors.