Function isPageUpShift

packages/base/src/Keys.ts:191–191

(event: KeyboardEvent)

const isPageDown = (event: KeyboardEvent): boolean => (event.key ? event.key === "PageDown" : event.keyCode === KeyCodes.PAGE_DOWN) && !hasModifierKeys(event);

const isPageUpShift = (event: KeyboardEvent): boolean => (event.key ? event.key === "PageUp" : event.keyCode === KeyCodes.PAGE_UP) && checkModifierKeys(event, false, false, true);

const isPageUpAlt = (event: KeyboardEvent): boolean => (event.key ? event.key === "PageUp" : event.keyCode === KeyCodes.PAGE_UP) && checkModifierKeys(event, false, true, false);