Kubernetes and WebAssembly are two different technologies that serve different purposes. Kubernetes is an open-source platform for managing and deploying containerized applications, while WebAssembly is a low-level, portable binary format that can be used to run programming languages other than JavaScript in web browsers and other environments. Kubernetes is typically used for deploying and managing applications at scale, while WebAssembly is used for running high-performance, portable code in the browser and other environments. These technologies can be used together, but they are not directly related to each other.

WebAssembly is not a serverless function by itself, but it can be used to run serverless functions in the browser or other environments. Serverless functions are pieces of code that are executed in response to events, and are typically run on a cloud platform. These functions are typically written in languages such as JavaScript or Python, and are executed on the cloud provider's servers. With WebAssembly, it is possible to write serverless functions in other languages and run them in the browser or other environments, allowing for more flexibility and performance. However, WebAssembly itself is not a serverless function, but rather a technology that enables serverless functions to be run in different environments.