Using WebAssembly in your ReactJS App

What is WebAssembly?

WebAssembly (abbreviated Wasm) is a binary instruction format for a stack-based virtual machine. Wasm is designed as a portable target for compilation of high-level languages like C/C++/Rust, enabling deployment on the web for client and server applications.

Alongside HTML, CSS and Javascript, it is the fourth language to run natively in browsers and supports the 4 major browser engines – Firefox, Chrome, Safari and Edge.

WebAssembly allows you to run code at native speed that is able to work with the JavaScript context and access browser functionality through the same Web APIs accessible from JavaScript. It basically allows you to run your code in native speed inside a browser.
You can learn more in-depth information about WebAssembly here:

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Build a PWA app with React.js

What is a Progressive Web App (PWA)?

So, what is a PWA? On the internet, you can find many definitions for PWAs, but to be considered a Progressive Web App, your app must be (as defined by Google):

  • Reliable – Load instantly and never show the “downasaur”, even in uncertain network conditions.
  • Fast – Respond quickly to user interactions with silky smooth animations and no janky scrolling.
  • Engaging – Feel like a natural app on the device, with an immersive user experience.

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Is It a Koala? Artificial Intelligence in Javascript and TensorFlow.js

AI in your Browser

Tensorflow.js brings machine learning and its possibilities to JavaScript. It is an open source library built to create, train, and run machine learning models in the browser and Node.js

Training and building complex models can take a considerable amount of resources and time. Some models require massive amounts of data to provide acceptable accuracy. And, if computationally intensive, may require hours or days of training to complete. All that taken into consideration, you may not find the browser to be the ideal environment for building such models.

A more appealing use case is importing and running existing models. Depending on the problem you are trying to solve, there might be a model already trained with a data set and for a specific purpose which you can use and import in your code. (more…)

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