ToggleEvent: newState property

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used 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 Standard
# dom-toggleevent-newstate

Browser compatibility

BCD tables only load in the browser

See also