Theport read-only property of theURLPattern interface is a string containing thepattern used to match the port part of a URL.

This is thenormalized value of the port pattern passed to theconstructor, or aninherited value from abaseURL passed to the constructor, or the default value ("*"), which matches any port.

Note that it may also be set implicitly to the empty string ("") if the pattern is specified using anurl orbaseURL string and the port is not explicitly set.This empty string matches against URLs that use the default port (443).

Value

A string.

Examples

Basic usage

The following example creates aURLPattern object with(80|443|8080) for theport part and logs the property.This pattern matches any URL that has the port80,443, or8080.

const pattern = new URLPattern({ port: "(80|443|8080)" });console.log(pattern.port); // "(80|443|8080)"console.log(pattern.test("http://example.com:8080/")); // true

Specifications

Browser compatibility