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Showing content from http://developer.mozilla.org/en-US/docs/Web/API/HTMLAnchorElement/port below:

HTMLAnchorElement: port property - Web APIs

HTMLAnchorElement: port property

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The port property of the HTMLAnchorElement 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 Getting the port from an anchor link
// An <a id="myAnchor" href="https://developer.mozilla.org:443/en-US/docs/HTMLAnchorElement"> element is in the document
const anchor = document.getElementByID("myAnchor");
anchor.port; // returns ''
// Another <a id="myAnchor" href="https://developer.mozilla.org:8888/en-US/docs/HTMLAnchorElement"> element is in the document
const anchor = document.getElementByID("myAnchor");
anchor.port; // Returns:'8888'
Specifications Browser compatibility See also

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