MathMLAnchorElement: port property

The port property of the MathMLAnchorElement interface is a string containing the port number of the <a> element's href. If the port is the default for the protocol (80 for ws: and http:, 443 for wss: and https:, and 21 for ftp:), this property contains an empty string, "".

This property can be set to change the port of the URL. If the URL has no host or its scheme is file:, then setting this property has no effect. It also silently ignores invalid port numbers.

See URL.port for more information.

Value

A string.

Examples

Basic usage

Given this HTML:

html
<a id="myAnchor" href="https://example.com:8001/subsection#examples"> ... </a>

you can get the port of the anchor like this:

js
const mathAnchor = document.getElementById("myAnchor");
mathAnchor.port; // returns '8001'

Specifications

Specification
HTML
# dom-hyperlink-port

Browser compatibility

See also

  • The MathML <a> element