web api instance method
HighlightRegistry: has() method
The has() method of the HighlightRegistry interface returns a boolean indicating whether or not a Highlight object with the specified name exists in the registry.
HighlightRegistry is a Map-like object, so this is similar to using has().
Syntax
has(name)
Parameters
name- : The name of the
Highlightobject to test for presence in the registry.
- : The name of the
Return value
Returns true if a highlight with the specified name exists in the registry; otherwise false.
Examples
const fooHighlight = new Highlight();
CSS.highlights.set("foo", fooHighlight);
myHighlight.has("foo"); // true
myHighlight.has("bar"); // false
Specifications
SpecificationsStandards references are available on the canonical MDN page.
Browser compatibility
Browser compatibilityCompatibility data is available on the canonical MDN page.