Coordinates.speed
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
Coordinates.speed 回傳唯讀的正複數代表速度，單位為公尺/秒。 如果裝置無法測量這個值則回傳 null。
語法
speed = coordinates.speed
規格
| Specification |
|---|
| Geolocation # speed-attribute |
瀏覽器的相容性
BCD tables only load in the browser
請參考
- Using geolocation
- 屬於
Coordinates介面。