Summary
In this chapter, you extended your knowledge of potential source code files running in Node.js. You are now familiar with running WASM – a lower-level portable binary-code language that can be used as a compilation target by many programming languages.
WASM can help you to write functionality once and run it on multiple platforms. Since WASM can be sandboxed very well, it is a good contender for the next wave of containerized computing, where performance and security are valued highly. You now know how to write WASM using AssemblyScript. You are also empowered to integrate created WASM modules in Node.js.
In the next and final chapter, we will take a look at the use of JavaScript beyond Node.js. We’ll see that other runtimes exist, which are partially compatible with the Node.js ecosystem – providing a great drop-in replacement that can be handy for multiple use cases.
