JavaScript Briefly
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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.
Cap'n Web is a lightweight, schema-free TypeScript RPC protocol optimized for modern web runtimes, enabling human-readable JSON serialization and multiple transports.
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October 15, 2025 at 1:44 PM
Cap'n Web is a lightweight, schema-free TypeScript RPC protocol optimized for modern web runtimes, enabling human-readable JSON serialization and multiple transports.
Web platform improvements reduce reliance on JavaScript and some npm packages, while JSON behavior varies across languages; developer seeks a developer evangelist/advocate role.
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October 13, 2025 at 1:23 AM
Web platform improvements reduce reliance on JavaScript and some npm packages, while JSON behavior varies across languages; developer seeks a developer evangelist/advocate role.
React and React Native will move from Meta to a new Linux Foundation-hosted React Foundation to ensure neutral, community-led open-source stewardship.
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October 8, 2025 at 8:36 PM
React and React Native will move from Meta to a new Linux Foundation-hosted React Foundation to ensure neutral, community-led open-source stewardship.
Mainstream programming languages' % operator yields negative remainders for negative operands, producing −3 for −3 % 4 instead of the mathematically expected 1.
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October 8, 2025 at 7:22 AM
Mainstream programming languages' % operator yields negative remainders for negative operands, producing −3 for −3 % 4 instead of the mathematically expected 1.
JavaScript, jQuery, DHTML, and HTML5 Canvas enable creation of high-performance, cross-platform web and mobile graphics, games, UIs, and interactive dashboards.
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October 6, 2025 at 5:31 PM
JavaScript, jQuery, DHTML, and HTML5 Canvas enable creation of high-performance, cross-platform web and mobile graphics, games, UIs, and interactive dashboards.
Object.groupBy() and Map.groupBy() provide native, concise ways to group array elements by callback-generated keys.
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October 6, 2025 at 2:15 PM
Object.groupBy() and Map.groupBy() provide native, concise ways to group array elements by callback-generated keys.
A simple Iterated Function System of four affine transforms applied randomly with fixed probabilities generates the Barnsley fern's detailed leafy shape.
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October 5, 2025 at 5:40 AM
A simple Iterated Function System of four affine transforms applied randomly with fixed probabilities generates the Barnsley fern's detailed leafy shape.
Programmers remain essential in AI-enabled development; continuous learning, especially for JavaScript developers, is necessary despite advanced AI tools.
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October 3, 2025 at 9:21 AM
Programmers remain essential in AI-enabled development; continuous learning, especially for JavaScript developers, is necessary despite advanced AI tools.
Chainguard supplies SLSA L2-built, malware-resistant JavaScript libraries to secure language dependencies and reduce supply-chain insertion risks.
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October 2, 2025 at 9:14 PM
Chainguard supplies SLSA L2-built, malware-resistant JavaScript libraries to secure language dependencies and reduce supply-chain insertion risks.