URLPattern: pathname property

Baseline 2025

Newly available

Since ⁨September 2025⁩, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.

Note: This feature is available in Web Workers.

The pathname read-only property of the URLPattern interface is a string containing the pattern used to match the pathname part of a URL.

This is the normalized value of the pathname pattern passed to the constructor, an inherited value from a baseURL passed to the constructor, or the default value ("*"), which matches any path.

The following example creates a URLPattern object with /books/:id(\\d) for the pathname part and logs the property. This pattern matches any URL that starts with /books/, followed by an integer.

const pattern = new URLPattern({ pathname: "/books/:id(\\d)" });
console.log(pattern.pathname); // "/books/:id(\\d)"
console.log(pattern.test("https://example.com/books/8")); // true