PositionOptions

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安全上下文
此特征只可用于安全上下文 (HTTPS)，在某些或所有支持浏览器 .

PositionOptions dictionary describes an object containing option properties to pass as a parameter of Geolocation.getCurrentPosition() and Geolocation.watchPosition() .

PositionOptions.enableHighAccuracy 安全上下文: 是 布尔 that indicates the application would like to receive the best possible results. If true and if the device is able to provide a more accurate position, it will do so. Note that this can result in slower response times or increased power consumption (with a GPS chip on a mobile device for example). On the other hand, if false , the device can take the liberty to save resources by responding more quickly and/or using less power. Default: false .
PositionOptions.timeout 安全上下文: Is a positive long value representing the maximum length of time (in milliseconds) the device is allowed to take in order to return a position. The default value is Infinity , meaning that getCurrentPosition() won't return until the position is available.
PositionOptions.maximumAge 安全上下文: Is a positive long value indicating the maximum age in milliseconds of a possible cached position that is acceptable to return. If set to 0 , it means that the device cannot use a cached position and must attempt to retrieve the real current position. If set to Infinity the device must return a cached position regardless of its age. Default: 0.

规范	状态	注释
地理位置 API The definition of 'PositionOptions' in that specification.	推荐	初始定义

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`PositionOptions`	Chrome 5	Edge 12	Firefox 3.5	IE 9	Opera 16 16 不支持 10 — 15	Safari 5	WebView Android Yes	Chrome Android 18	Firefox Android 4	Opera Android 16 16 不支持 10.1 — 14	Safari iOS 5	Samsung Internet Android 1.0
`enableHighAccuracy`	Chrome 5	Edge 12	Firefox 3.5	IE 9	Opera 16 16 不支持 10 — 15	Safari 5	WebView Android Yes	Chrome Android 18	Firefox Android 4	Opera Android 16 16 不支持 10.1 — 14	Safari iOS Yes	Samsung Internet Android 1.0
`maximumAge`	Chrome 5	Edge 12	Firefox 3.5	IE 9	Opera 16 16 不支持 10 — 15	Safari 5	WebView Android Yes	Chrome Android 18	Firefox Android 4	Opera Android 16 16 不支持 10.1 — 14	Safari iOS Yes	Samsung Internet Android 1.0
Secure context required	Chrome 50	Edge ≤79	Firefox 55	IE No	Opera 37	Safari Yes	WebView Android 51 51 Secure context is only required for applications targeting Android Nougat (7) and higher. See bug 603574 .	Chrome Android 50	Firefox Android 55	Opera Android 37	Safari iOS Yes	Samsung Internet Android 5.0
`timeout`	Chrome 5	Edge 12	Firefox 3.5	IE 9	Opera 16 16 不支持 10 — 15	Safari 5	WebView Android Yes	Chrome Android 18	Firefox Android 4	Opera Android 16 16 不支持 10.1 — 14	Safari iOS Yes	Samsung Internet Android 1.0