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Intertech WebAssembly – Take Your Applications To Another Level!

Run Your Desktop Applications on the Web At Near Native Speeds

Software Design – Architecture – Development – QA – Delivery – Deployment

WebAssembly – What It Is and Why Consider Using It

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What Is WebAssembly

WebAssembly (or WASM) – From The source – “WebAssembly (abbreviated WASM) is a binary instruction format for a stack-based virtual machine. WASM is designed as a portable compilation target for programming languages, enabling deployment on the web for client and server applications.” webassembly.org. WebAssembly is efficient, fast, open source, debuggable, safe, and part of the open web platform, but what is the big takeaway — WebAssembly “is a compilation target for programming languages.” I highlight this because you may be under the impression that you write WASM code, but in reality, you compile your code into WASM code. As it states, “WASM is a binary instruction file which can run in a stack-based virtual machine .” In other words, a binary file runs in the abstraction of a computer that acts like real hardware. And the goal of WASM is for that abstraction to exist in the browser seamlessly.

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How WebAssembly Works

To begin with, a developer writes code in a WASM-supported language (C++, Rust, C#, etc..) and then compiles that code into a WASM binary format that can run in the browser. For example, you can compile a C++ library into WASM format and then run functions from the library in a JavaScript web environment. Each supported language compiles to WASM through a unique library or toolchain. For C++, a compiler toolchain called “Emscripten” is used. For Rust, there is a tool called “wasm-pack.” For C#, you build the application with Blazor, and Visual Studio (newer versions) handles the rest.

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Why Would You Use WebAssembly

A few regular use cases exist for going to WebAssembly as a solution.

  • Bottlenecks in your application: Areas where a 50% increase in execution time or more consistent execution time would drastically improve the end users’ experience. For example, your application has some backend business logic. In this case, you can eliminate the server usage, and the time it takes to communicate with it by executing that logic directly on the client.
  • Filling a technology gap: Google created an application called “Sqoosh,” used for image compression and processing. The application takes advantage of APIs and processing that traditional JavaScript couldn’t achieve, so they turned to WASM.
  • Using non-web-friendly code: “Sqoosh” is also an excellent example of using non-web-friendly code. It uses multiple libraries written in various languages compiled into WASM to deliver a wide range of image-processing functionality. The idea is code exists already that does something you want to do on the web. WASM can be the solution that brings that code to the web.
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Important Features of WebAssembly

  • Efficient and Fast:  The WebAssembly takes advantage of common hardware capabilities on a range of platforms and allows applciations to run at native speed.
  • Safe:  A WebAssembly encoded application is placed in a memory-safe sandboxed execution environment and enforces the same-origin and permissions security  policies of the browser
  • Becomes Part Of Open Web:  Maintains the versionless, feature-tested, backwards-compatible nature of the web
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Whos Behind WebAssembly

Part of the World Wide Web Consortium (W3C), the “Web Assembly Working Group,” is responsible for WebAssembly. They have contributors from many major players in modern web browsers, including Mozilla, Microsoft, Google, and many more. In 2019 W3C WebAssembly became the fourth language for the web, a massive stamp of approval by the people building browsers for WebAssembly. WebAssembly is turning out to be a groundbreaking addition to the web development world and is worth understanding.

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Whos Uses WebAssembly

  • Autocad – one of the oldest computer drafting software companies, was able to make a web version of their application using WebAssembly.
  • Unity – a gaming engine with a web player made using WebAssembly, provides performant 2D and 3D gaming that would otherwise not be possible.
  • TensorFlow – a JavaScript library used for machine learning modeling. WebAssembly was integrated for better, more performant modeling.
  • GoogleEarth – C/C++ codebases for native applications were ported to the web for performant 3D graphics in the browser.
  • Blazor – one of Microsoft’s newest programming frameworks, allows you to write C# code that compiles into WebAssembly that executes client side.
  • At madewithwebassembly.com you can see a list of projects made using WebAssembly.

    WebAssembly is turning out to be a groundbreaking addition to the web development world. It’s got the support of the right communities and is currently stable and fully supported, so the future is bright. Of course, it won’t be the tool you use for everything, but when used correctly, it can be a powerful enhancement to your web application.
    Why application Integration with the web can be important to your company.

    Why Is System Integration With The Web Important?

    WebAssembly allows your desktop applications to work anywhere. No download or installation is required. The web becomes your universal platform allowing you to reach any device while maintaining a single code base, supporting easy updates and worldwide access. Imagine using CAD programs through your browser, augmented reality programs with low latency, developer tools like editors, debuggers, and compilers, enterprise applications like databases, and more!

    How Does WebAssembly Work With javaScript?

    WebAssembly was created to work alongside JavaScript, running WebAssembly modules that share functionality with your JavaScript requirements. By combining the two, you now have a platform that takes advantage of WebAssembly’s power and performance attributes and JavaScript’s flexibility and nuances, making the experience enjoyable. Moreover, WebAssembly is being developed as a web standard via W3C – w3.org with active participation from all major browsers.

    Why Does WebAssembly Need JavaScript?

    Because WebAssembly does not have direct access to any application programming interfaces (APIs), you need JavaScript and HTML to make the connection, so your data moves back and forth. Using JavaScript and HTML, the browser loads, fetches, sends, and executes what your WebAssembly module has determined to be its focus. This is where WebAssembly comes in and fills a space where JavaScript does not do well, at the point where JavaScript begins to get overloaded. WebAssembly opens the doors to a great partnership between the two.
    WebAssembly Links & Demo By Intertech Consultant, Mark Root.
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