Geolocation.clearWatch()
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.
Geolocation.clearWatch() 這個函式是用來取消 Geolocation.watchPosition() 註冊的函式。
語法
navigator.geolocation.clearWatch(id);
參數
- 編號(id)
-
這個編號(ID) 是由
Geolocation.watchPosition()這個函式所回傳，當你不再需要收到位置更新時，你可以用此編號，取消Geolocation.watchPosition()的註冊。
範例
js
var id, target, option;
function success(pos) {
var crd = pos.coords;
if (target.latitude === crd.latitude && target.longitude === crd.longitude) {
console.log("Congratulation, you reach the target");
navigator.geolocation.clearWatch(id);
}
}
function error(err) {
console.warn("ERROR(" + err.code + "): " + err.message);
}
target = {
latitude: 0,
longitude: 0,
};
options = {
enableHighAccuracy: false,
timeout: 5000,
maximumAge: 0,
};
id = navigator.geolocation.watchPosition(success, error, options);
規格
| Specification |
|---|
| Geolocation # clearwatch-method |