JSDoc types not supported

[johndeighan]

$ deno --version
deno 2.1.4 (stable, release, x86_64-pc-windows-msvc)
v8 13.0.245.12-rusty
typescript 5.6.2

JSDoc allows you to specify the type of parameters or the return value in JavaScript code like:

/**
 * Represents a book.
 * @param {string} title - The title of the book.
 * @param {string} author - The author of the book.
 * @returns {boolean}
 */
function Book(title, author) {
}

However, though Deno 2 claims to support both TypeScript and JavaScript development, it doesn't support this method of specifying types. To be more specific, when I include JSDoc like the above, the {string} and {boolean} strings are ignored and the documentation produced doesn't include the type of parameters or return values.

[dsherret]

Can you show a full reproduction (What does your file look like? What command are you running?)? Does that javascript file have // @ts-check at the top?