web – weiy.city

Boost Your Efficiency: Free WeChat Markdown Editor Launched! One-Click Formatting + AI Assistant to End Your Public Account Formatting Woes!

Tired of clunky formatting tools in WeChat Official Account backend? Frustrated by misaligned layouts after endless adjustments? Try “WeChat Markdown Editor” – designed for content creators! Zero installation required, start writing instantly with Markdown syntax + AI-powered formatting for seamless creation! 🔥 Why Choose It? 5 Game-Changing Features . 🌟 Perfect For: 🚀 3-Step Workflow 💡 User Testimonials Try Read more…

By StephenWei, 5 days2025-04-25 ago

Tool

Remove all AI tools that use OpenAI’s API

We have to announce that we will be removing all AI tools powered by OpenAI’s paid API. OpenAI’s new policy, which forcibly expires all prepaid API credits after one year, caught us by surprise. We received no prior email notifications, and this policy change was implemented months after our initial Read more…

By StephenWei, 1 week2025-04-22 ago

Tool

Instantly Convert Text to QR Code – Your Free Cross-Platform Solution!

. Tired of typing long URLs or repeating Wi-Fi passwords? Say hello to Text To QR Code – the web-based tool that transforms any text into scannable magic in 3 seconds! . ✨ Why Choose Us?✅ Zero Barriers: No registration, no ads, unlimited free conversions✅ Universal Compatibility: Works seamlessly on Read more…

By StephenWei, 3 weeks2025-04-09 ago

Web

How was emscripten_set_wheel_callback_on_thread generated in wasm file

We had met a bug about _emscripten_set_wheel_callback_on_thread in web app based on wasm. Relative post: https://www.weiy.city/2025/02/uncaught-typeerror-cannot-read-properties-of-null-reading-onwheel-from-_emscripten_set_wheel_callback_on_thread/ Let’s explore how was the function generated in the final wasm file. The function _emscripten_set_wheel_callback_on_thread was from emscripten_set_wheel_callback_on_thread in src/library_html5.js. Read js files and html5.h under emsdk to find the called logic. Code in Read more…

By StephenWei, 2 months2025-03-02 ago

Web

WASM – Aborted(Assertion failed: attempt to write non-integer (undefined) into integer heap)

There is Aborted crash on browser when I resize window. My web app is based on VTK wasm. Check uiEventHandlerFunc in Test.js: Then we can read /emsdk/upstream/emscripten/src/library_html5.js and find registerUiEventCallback and uiEventHandlerFunc on the file. There is checkInt32(e.detail) in registerUiEventCallback in exported js file Test.js which was generated from emsdk Read more…

By StephenWei, 2 months2025-02-28 ago

Web

Two-layer multithreaded loops in the web consume more resources than single-layer loops

WebAssembly’s std::thread underlying Web Workers relies on the browser, which has a strict limit on the number of Workers that can be active at the same time (usually the number of physical CPU cores, such as 4-8). Why does a two-tier loop (say 10×10) create threads that consume more resources Read more…

By StephenWei, 2 months2025-02-23 ago

Web

Write stl to wasm virtual memory and read it by wasm module

Here is an example about how to write stl file to wasm virtual memory and make wasm module read it. We need to add write file logic in onRuntimeInitialized for wasm module. index.html: C++ code for wasm module: binding.cpp Worker.cpp All code has been upload to GitHub: https://github.com/theArcticOcean/webLib/tree/main/threadTest

By StephenWei, 2 months2025-02-23 ago

Python

Python Script For http.server To Support SharedArrayBuffer

Configure the SharedArrayBuffer response header in the http.server module of the Python standard library to enable the server to support a web multithreading environment. Let’s support SharedArrayBuffer on web browser. SharedArrayBuffer is a JavaScript object that allows multiple WebWorker threads to share the same memory space. This means that different Read more…

By StephenWei, 2 months2025-02-23 ago

VTK

Save Points To File In VTK WASM And Desktop App Environment

Desktop App Environment VTK WASM

By StephenWei, 3 months2025-01-22 ago