webassembly | 易学教程

Blazor select bind to a value in a list [duplicate]

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问题 This question already has answers here : blazor variable argument passing to onclick function (2 answers) Closed last year . I was able to bind an int type (which is the first element of the list SelectedDiagnosisIdList) variable to the selected element of a html select: <div> <label>Diagnosis:</label> <div> <select @bind="@userInfo.SelectedDiagnosisIdList[0]"> @foreach (var item in diagnoses) { <option value="@item.Id">@item.Name</option> } </select> <p>@userInfo.SelectedDiagnosisIdList[0]"<

必考知识点-JavaScript类型转换（讲原理）

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一、类型转换先说类型类型转换指将一种类型转换为另一种类型，那我们首先来说说JavaScript中的类型。 1.1原始(Primitive)数据类型 Null Undefined Boolean String Number Symbol BigInt BigInt是一种新的数据类型，用于当整数值大于Number数据类型支持的范围时。这种数据类型允许我们安全地对大整数执行算术操作，表示高分辨率的时间戳，使用大整数id，等等，而不需要使用库。重要的是要记住，不能使用Number和BigInt操作数的混合执行算术运算，需要通过显式转换其中的一种类型。此外，出于兼容性原因，不允许在BigInt上使用一元加号（+）运算符。 1.2引用(Object)数据类型 javaScript中内置了很多对象。 Array Array ArrayBuffer AsyncFunction Atomics BigInt BigInt64Array BigUint64Array Boolean DataView Date Error EvalError Float32Array Float64Array Function Generator GeneratorFunction Infinity Int16Array Int32Array Int8Array InternalError Intl Intl

12.19 KubeSphere Meetup|闪电演讲+Workshop 新鲜出炉！

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社区的技术活动由社区做主！除了 14:00 ~ 16:00 的 Keynotes 分享，我们还为您提供展示技术才华的舞台，您可以扫码海报观看闪电演讲，或在现场报名闪电演讲！我们也为 DevOps 爱好者提供现场动手实践交流的机会，欢迎报名参与 DevOps Workshop ，查看文末提前加入 Workshop 交流群，与 DevOps 教练面对面。关于闪电演讲与 DevOps Workshop 的细节请看以下详细介绍。 ↓ 闪电演讲「分享时间」： 16:00 ~ 17:30 云原生的 WebAssembly 能取代 Docker 吗？简介 Docker 创始人曾在推特上表示，如果WebAssembly 和 WASI 在2008年就诞生了，那么也没有创立 Docker 的必要了，WebAssembly 是云计算的未来。那么云原生的 WebAssembly 能取代 Docker 吗？大纲什么是WebAssembly？ WebAssembly 在云原生领域发挥的作用及应用场景用 k8s 管理 WebAssembly 的解决方案 Docker 与 WebAssembly 之间的关系，是你死我亡，还是在云原生领域共同繁荣呢？应用发布与多集群管理：使用 QKE 管理多个 ACK 集群简介 QKE 可以提供开箱即用、高可用的 KubeSphere

【Rust日报】2020-06-16

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Rust语言实现网页分析器 A simple web analytics in Rust https://github.com/kooparse/bast Rust语言实现网页分析器，生成网站流量简明报告。 Rust和WebAssembly多线程系统库 A multithreading library for Rust and WebAssembly https://github.com/w3reality/wasm-mt A multithreading library for Rust and WebAssembly. Rust和WebAssembly多线程系统库。用Rust语言清除Gitignored垃圾 Using Rust to Delete Gitignored Cruft https://www.forrestthewoods.com/blog/using-rust-to-delete-gitignored-cruft/ native-dialog - 跨平台文件选取器和消息框开发库 native-dialog - A cross-platform file picker and message box library. https://github.com/balthild/native-dialog-rs native-dialog显示文件选取器和消息框

Blazor WebAssembly Monitor Threading exception

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问题 I'm currently working on a .NET Standard 2.1 Blazor WebAssembly hosted application. My application structure looks like this: BlazorApp.Client (error occures here) BlazorApp.Server I use Serilog with the Elasticsearch sink in my BlazorApp.Client project. It works fine, but when I enable Selflog on Serilog and debug, I get the following error in my browser console: SelfLog.Enable(msg => Debug.WriteLine(msg)); Elasticsearch.Net.UnexpectedElasticsearchClientException: Cannot wait on monitors on

Blazor WebAssembly Monitor Threading exception

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Is there a more efficient way to return arrays from C++ to javascript?

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问题 To pass typed array from emscripten'ed C++ to javascript I came up with this code #include <emscripten/bind.h> #include <emscripten/val.h> auto test(const emscripten::val &input) { const auto data = emscripten::convertJSArrayToNumberVector<float>(input); // copies data // generate output in some form std::vector<float> output = { 1, 2, 3 }; // make a typed array view of the output emscripten::val view{ emscripten::typed_memory_view(output.size(), output.data()) }; // create new typed array to

How to pass image frames camera to a function in wasm (C++)?

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问题 I'm trying to build a C++ function and compile it to Wasm using Emscripten. What this function will do is receive an image and do some process on it and return a result. My first POC was successful, the user upload image using file input and I pass the data of the image using FileReader API: const fileReader = new FileReader(); fileReader.onload = (event) => { const uint8Arr = new Uint8Array(event.target.result); passToWasm(event.target.result); }; fileReader.readAsArrayBuffer(file); // I got

TypeError: WebAssembly Instantiation: Imports argument must be present and must be an object

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问题 I'm following this hello world tutorial: https://steemit.com/eos/@skenan/eos-development-for-beginners-webassembly and I get this error: TypeError: WebAssembly Instantiation: Imports argument must be present and must be an object Any idea what might be causing it? Thanks! 回答1: The reason you got this error is probably because: when you initiate a webassembly instance, you need to specify the import object as well. Just like: WebAssembly.instantiate(module, imports); Well, here I'm just giving

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