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Coordinates.speed

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 Status Comment
Geolocation API
The definition of 'Coordinates.speed' in that specification.
Recommendation Initial specification.

瀏覽器的相容性

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support 5 3.5 (1.9.1) 9 10.60
No support 15.0
16.0
5
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support ? ? 4.0 (4) ? 10.60 ?

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