The get() method of the HighlightRegistry interface returns the named Highlight object from the registry.

HighlightRegistry is a Map-like object, so this is similar to using Map.get().

name

The name of the Highlight object to return from the registry. The name must be a String.

The Highlight object associated with the specified name, or undefined if the name can't be found in the HighlightRegistry.

The following code sample demonstrates how to create a new Highlight, add it to the registry, and retrieve it by its name using the get() method:

const fooHighlight = new Highlight();
CSS.highlights.set("foo", fooHighlight);

console.log(CSS.highlights.get("foo")); // Returns the fooHighlight object.

• The CSS Custom Highlight API
• CSS Custom Highlight API: The Future of Highlighting Text Ranges on the Web