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ToggleEvent: newState property - Web APIs | MDN
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ToggleEvent: newState property
Baseline
2023
Newly available
Since November 2023, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.
The newState read-only property of the ToggleEvent interface is a string representing the state the element is transitioning to.
Value
A string. Possible values are "open" (the popover is being shown) or "closed" (the popover is being hidden).
Examples
js
const popover = document.getElementById("mypopover");
// …
popover.addEventListener("beforetoggle", (event) => {
if (event.newState === "open") {
console.log("Popover is being shown");
} else {
console.log("Popover is being hidden");
}
});
Specifications
| Specification |
|---|
| HTML # dom-toggleevent-newstate |
Browser compatibility
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