Learn more about using Wasm with Deno: 
- https://deno.com/blog/intro-to-wasm
- https://docs.deno.com/runtime/reference/wasm/

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Deno's official blog provides updates, tutorials, and use cases for Deno, a secure JavaScript/TypeScript runtime. Developers can explore Deno's features, security model, and ecosystem integrations, gaining insights into modern JavaScript development practices. With contributions from Deno core contributors and community members, the blog offers resources for developers adopting Deno for their projects.

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WebAssembly (WASM) offers a way to execute binary machine code in the browser, enhancing performance for web applications. It is a portable binary format suitable for high-performance applications and uses languages like C, C++, and Rust. With Deno's support, using WASM modules has become more straightforward. This overview includes a practical example of creating and using a simple WASM module, highlighting the seamless integration with TypeScript and JavaScript.

WASM is easier than ever!

WASM sells an idea that is nice but it does not always deliver. Data transfer between WASM and JS is so memory expensive that it becomes significantly slower.
I’ve actually tried it with many examples, and using JS native function is far better than using any WASM alternative if there’s a regular exchange of data (for example running a WASM function in loops).
The only place that WASM becomes a winner, is when working with CPU intensive tasks, and there’s little data exchange between JS and WASM, for example running a Fibonacci function in Rust.
Even running Gaussian blur function in JS is faster than using WASM.
WASM is still a great option when you’d like to conceal your source code, but when it comes to performance JS has become so efficient over the years that WASM is not the obvious.