URLPattern.pathname

The pathname property of the URLPattern interface is a USVString containing the pattern used to match the pathname part of a URL. This value may differ from the input to the constructor due to normalization.

A USVString.

The below example creates a URLPattern object with /books/:id(\\d) for the pathname part. This pattern matches URLs starting with /books/, followed by an integer.

const pattern = new URLPattern({ pathname: '/books/:id(\\d)' });
console.log(pattern.pathname); // '/books/:id(\\d)'