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

瀏覽器的相容性

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請參考