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May 23, 2018 11:10
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Promised version of getting user's geolocation
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| function getPositionPromised() { | |
| function successCb(resolve) { | |
| return position => resolve(position); | |
| } | |
| function errorCb(reject) { | |
| return () => reject('Could not retrieve geolocation'); | |
| } | |
| return new Promise((resolve, reject) => { | |
| if (window.navigator.geolocation) { | |
| navigator.geolocation.getCurrentPosition(successCb(resolve), errorCb(reject)); | |
| } else { | |
| return reject('No geolocation support'); | |
| } | |
| }) | |
| } | |
| //You can use it like this: | |
| getPositionPromised() | |
| .then(position => {/*do something with position*/}) | |
| .catch(() => {/*something went wrong*/}) |
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