ScreenOrientation.type
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since 2023年3月.
ScreenOrientation の読み取り専用プロパティ type は、文書の現在の向きのタイプを返します。"portrait-primary"、"portrait-secondary"、"landscape-primary"、"landscape-secondary" のいずれかです。