react-rcs
Version:
React scrollbars component
13 lines (12 loc) • 374 B
JavaScript
// ref https://github.com/WICG/EventListenerOptions/pull/30
function isPassive() {
var supportsPassiveOption = false;
try {
addEventListener("test", null, Object.defineProperty({}, 'passive', {
get: function () {
supportsPassiveOption = true;
}
}));
} catch(e) {}
return supportsPassiveOption;
}