What is a composite action in GitHub Actions and how does it differ from a JavaScript action?

Question

Github — Hard

What is a composite action in GitHub Actions and how does it differ from a JavaScript action?

Accepted Answer

Composite actions in GitHub Actions are defined in YAML, allowing multiple steps to be chained together. This differs from JavaScript actions, which are written in Node.js. The correct answer highlights this distinction. Incorrect options misrepresent the differences or focus on unrelated aspects.