hast-util-is-javascript

`hast-util-is-javascript` is a utility package within the unified/rehype ecosystem designed to determine if a given `hast` (HTML Abstract Syntax Tree) node represents a JavaScript script. It specifically checks `<script>` elements, evaluating their `type` and `language` attributes to ascertain if they contain or reference JavaScript, or if these attributes are absent, implying JavaScript by default. The current stable version is `3.0.1`. As part of the `rehypejs` project, it follows a coordinated release schedule, often releasing minor or patch updates across multiple packages, with major version increments for significant breaking changes, such as the recent `7.0.0` ecosystem release which introduced ESM-only modules and a Node.js 16+ requirement. Its primary differentiator is its seamless integration with other `hast` manipulation tools and its strict adherence to WHATWG HTML parsing standards.