Highlight: type property
Baseline 2025Newly available
Since June 2025, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.
The type property of the Highlight interface is an enumerated String used to specify the meaning of the highlight. This allows assistive technologies, such as screen readers, to include this meaning when exposing the highlight to users.
By default, a highlight object will have its type set to highlight, but you can change it to spelling-error or grammar-error.
Value
The possible values of the type enumerated value are:
highlight-
This is the default highlight type. It does not have any specific meaning.
spelling-error-
Use this type when the highlight is used to emphasize misspelled content.
grammar-error-
Use this type when the highlight is used to emphasize content that is grammatically incorrect.
Examples
const spellErrorRange = new Range();
spellErrorRange.setStart(textNode, 10);
spellErrorRange.setEnd(textNode, 20);
const spellErrorsHighlight = new Highlight(spellErrorRange);
spellErrorsHighlight.type = "spelling-error";
Specifications
| Specification |
|---|
| CSS Custom Highlight API Module Level 1 # enumdef-highlighttype |