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Analysis Report of the NSA's Attack on the Chinese National Timekeeping Center
6 months ago
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- Translation of Chinese NSA report available.
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Meta chief AI scientist Yann LeCun plans to exit and launch own startup
6 months ago
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Investor angst over Big Tech's AI spending spills into bond market
6 months ago
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Footage of Bolide Capture from Aircraft
6 months ago
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Pakistani newspaper mistakenly prints AI prompt with the article
6 months ago
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Yt-dlp: External JavaScript runtime now required for full YouTube support
6 months ago
- yt-dlp now requires an external JavaScript runtime (e.g., Deno) for full YouTube support.
- Supported JavaScript runtimes: Deno (recommended), Node, QuickJS, QuickJS-ng, and Bun.
- Deno is enabled by default; others are disabled for security reasons.
- yt-dlp-ejs component is required and included in official executables or default Python installations.
- YouTube support without a JS runtime is deprecated, with limited format availability expected to worsen.
- Package maintainers should note licensing and dependency specifics for yt-dlp and yt-dlp-ejs.
Secure Coding in JavaScript
6 months ago
- JavaScript is widely used across the internet, making it a prime target for attackers.
- Cross-site scripting (XSS) is a major security concern in JavaScript, attacking users directly through their browsers.
- To prevent XSS, perform input validation, output encoding, use Content Security Policy (CSP), and secure cookies with the 'HttpOnly' flag.
- Modern JavaScript frameworks like React, Angular, and Vue.js automatically perform output encoding, enhancing security.
- Avoid inline scripting to reduce XSS risks and improve code organization.
- Use 'strict mode' in JavaScript to write safer, cleaner, and more predictable code.
- Leverage open-source tools like DomPurify, Retire.js, and npm Audit to enhance security.
- Clearly identify text within code to prevent execution of unintended scripts.
- Apply variables only to safe attributes and avoid dynamic, unsafe attributes.
- Validate input on the backend to prevent bypassing front-end security checks.
- Avoid problematic JavaScript functions like 'eval()' and 'innerHTML' when handling user data.
- Follow secure coding practices such as input validation, encryption, and secure authentication.
- Implement a secure system development life cycle (S-SDLC) to ensure robust and secure applications.
Tesla gets 14 times more labor productivity per dollar in China than the U.S.
6 months ago
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Benzene at 200
6 months ago
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Every AI app startup is likely to be crushed by the foundational model providers
6 months ago
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I captured my friend transiting the sun during a skydive
6 months ago
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Oracle hit hard in Wall Street's tech sell-off over its AI bet
6 months ago
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Cursor never says "IDE" on their homepage
6 months ago
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At DeepSeek, we are trying to replace compilers with AI
6 months ago
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The Myth of Private AI: Why Your Chat Logs Are a Legal Battlefield
6 months ago
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White House memo claims Alibaba is helping Chinese military target US
6 months ago
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Boa: A standard-conforming embeddable JavaScript engine written in Rust
6 months ago
- Boa is a JavaScript lexer, parser, and interpreter written in Rust, supporting over 90% of the latest ECMAScript specification.
- It offers a live WASM playground and a CLI tool (boa_cli) for testing.
- Boa maintains several crates including boa_ast, boa_engine, boa_gc, and boa_parser, among others.
- Deprecated crates include Boa and boa_unicode.
- To use Boa, add boa_engine to Cargo.toml and follow the provided example in main.rs.
- Boa provides detailed documentation and conformance test results for the ECMAScript specification.
- Contributing guidelines are available in CONTRIBUTING.md, requiring Rust and an editor like VSCode.
- Debugging information is available in debugging.md.
- Special instructions for WASM targets include enabling the js feature flag and setting specific RUSTFLAGS.
- Boa can be run from the CLI with various options for dumping AST, tracing, and more.
- Benchmarking is supported with scripts from v8's benchmarks, with results available online.
- Profiling and changelog details are provided for developers.
- Community support is available via Matrix and Discord.
- Licensed under the Unlicense or MIT licenses.
V8: Digging into the TurboFan JIT (2015)
6 months ago
- TurboFan is a new JIT compiler in V8 designed for better performance.
- It features a layered architecture separating JavaScript, V8 capabilities, and hardware intricacies.
- TurboFan supports 7 target architectures with less platform-specific code than CrankShaft.
- It implements more sophisticated optimizations like numerical range analysis and graph-based IR.
- The design allows for easier contributions and support for upcoming ES6 features.
- TurboFan shows significant speedups, with ongoing work to enable more optimizations.
Brimstone: ES2025 JavaScript engine written in Rust
6 months ago
- Brimstone is a JavaScript engine written in Rust with full JavaScript language support.
- It supports >97% of ECMAScript language in test262 but is not production-ready.
- Implements ECMAScript specification with inspiration from V8 and SerenityOS's LibJS.
- Features include a bytecode VM, compacting garbage collector, custom RegExp engine, and custom parser.
- Built with minimal dependencies except for ICU4X.
- Builtin objects and functions are mostly implemented to spec.
- Build and run using standard cargo commands: `cargo build` and `cargo run`.
- Execute JavaScript files with `./target/debug/bs ./hello.js`.
- Relies on test262 and other test suites; run tests with `cargo brimstone-test` or `cargo test`.
- Implements all ES2024 features and stage 4 proposals except SharedArrayBuffer and Atomics.
The fate of "small" open source
6 months ago
- The npm package 'blob-util', written 10 years ago, still gets 5+ million weekly downloads.
- AI tools like Claude can now generate similar utility functions, reducing the need for small libraries like 'blob-util'.
- The author reflects on the educational value of libraries, which AI-generated code may lack.
- The era of small, low-value libraries is ending due to Node.js, browser improvements, and AI.
- Open source still has value in larger, inventive, or niche projects that AI can't easily replicate.
- Examples like Ripple.js show that human innovation continues despite AI advancements.

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Analysis Report of the NSA's Attack on the Chinese National Timekeeping Center

Meta chief AI scientist Yann LeCun plans to exit and launch own startup

Investor angst over Big Tech's AI spending spills into bond market

Footage of Bolide Capture from Aircraft

Pakistani newspaper mistakenly prints AI prompt with the article

Yt-dlp: External JavaScript runtime now required for full YouTube support

Secure Coding in JavaScript

Tesla gets 14 times more labor productivity per dollar in China than the U.S.

Benzene at 200

Every AI app startup is likely to be crushed by the foundational model providers

I captured my friend transiting the sun during a skydive

Oracle hit hard in Wall Street's tech sell-off over its AI bet

Cursor never says "IDE" on their homepage

At DeepSeek, we are trying to replace compilers with AI

The Myth of Private AI: Why Your Chat Logs Are a Legal Battlefield

White House memo claims Alibaba is helping Chinese military target US

Boa: A standard-conforming embeddable JavaScript engine written in Rust

V8: Digging into the TurboFan JIT (2015)

Brimstone: ES2025 JavaScript engine written in Rust

The fate of "small" open source