WebAssembly + React Simplified

WebAssembly + React Simplified

Learn how to build your project with WebAssembly + React Simplified. There’s a time and place for WebAssembly (WASM), here we look at porting c++ with emscripten and call it from a React custom hook.

There’s a time and place for  WebAssembly (WASM), but even when you do find that exact right moment that you need to use it, it can be difficult to extract the information on how to use it from all the noise that surrounds it.

We’re going to be looking at taking some Open Source C++ and calling it from our React app in a custom hook.

What is WebAssembly?

The best explanation I have seen is from  https://developer.mozilla.org/en-US/docs/WebAssembly:

“WebAssembly is a new type of code that can be run in modern web browsers — it is a low-level assembly-like language with a compact binary format that runs with near-native performance and provides languages such as C/C++, C## and Rust with a compilation target so that they can run on the web. It is also designed to run alongside JavaScript, allowing both to work together.”

Haven’t we always been able to do that?

Yes and no. We’ve been able to run all those languages locally but not in the browser. Traditionally if we’ve needed to use something like C++ for any kind of code that runs in a browser, it’s normally been a request sent to run on the server.

react react-hook webassembly reactjs wasm

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