- Web Assembly (wasm) is a set of instructions or a low-level byte code that is a target for higher level languages. It was added to the browser because it was a portion of the web platform that many felt was just missing.
- Wasm is still a young technology. It performs really well for computationally intensive applications and also offers performance consistency (because it lacks a garbage collector).
- Interesting use cases such as A/B testing, DDoS prevention, server-side rendering, or traffic shaping can be done at the edge.
- Wasm is an approach to bringing full application experiences to the edge.
- Wasi (Web Assembly System Interface) is a standardized interface for running Web Assembly for places that are outside of the web. Fastly recently released a pure Web Assembly runtime for their edge that is built on top of Wasi called Lucet (allows access to lower level things at the edge like sockets and UDP).
- Zoom has a web client written in Web Assembly.
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