MathMLAnchorElement: relList property

Value

A live DOMTokenList object.

Although the relList property itself is read-only in the sense that you can't replace the DOMTokenList object, you can still assign to the relList property directly, which is equivalent to assigning to its value property. You can also modify the DOMTokenList object using the add(), remove(), replace(), and toggle() methods.

Examples

Basic usage

Given this MathML:

<math>
  <a id="myAnchor" href="https://example.com" rel="help alternate">...</a>
</math>

you can use the relList property to access the individual rel values like this:

const mathAnchor = document.getElementById("myAnchor");
mathAnchor.relList[0]; // "help"
mathAnchor.relList[1]; // "alternate"

You can also change the contained values using DOMTokenList features, like this:

mathAnchor.relList.value = "author bookmark";
mathAnchor.relList.add("me");

Because the DOMTokenList is live, mathAnchor.rel will now return the value author bookmark me.

Specifications

Browser compatibility

See also

• The MathML <a> element
• MathMLAnchorElement.rel
• rel HTML attribute