GeolocationCoordinates:heading 屬性

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.

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

GeolocationCoordinates 介面的 heading 唯讀屬性是一個 double 值,表示裝置正在行進的方向。此值以度數表示,指示裝置偏離正北方向的程度。0 度表示正北,方向是順時針決定的(這意味著東是 90 度,西是 270 度)。如果 GeolocationCoordinates.speed0,或裝置無法提供方向資訊,headingnull

一個 double,表示裝置正在行進的方向。

規範

Specification
Geolocation
# heading-attribute

瀏覽器相容性

BCD tables only load in the browser

參見