HTML5 get geolocation function

Question

I'm trying to write function that returns the geolocation using html5. However my function never returns. How come?

function getCurLocation() {
    navigator.geolocation.getCurrentPosition(function(position) {  
        return [position.coords.latitude, position.coords.longitude];
    });
}

add a return before navigator.geolocation.

karthikr
– karthikr

2013-05-20 02:07:34 +00:00
Commented May 20, 2013 at 2:07 — karthikr
– karthikr, Commented May 20, 2013 at 2:07
@karthikr I also tried that.

drum
– drum

2013-05-20 02:08:26 +00:00
Commented May 20, 2013 at 2:08 — drum
– drum, Commented May 20, 2013 at 2:08

Explosion Pills · Accepted Answer · 2013-05-20 02:09:54Z

2

navigator.geolocation.getCurrentPosition is an asynchronous call. As with all Ajax, you can't return it's value synchronously with the rest of the code. You can't know when it will complete or even if it will complete. Any work that relies on the response (position in this case) of the ajax call must be done in the ajax callback.

answered May 20, 2013 at 2:09

Explosion Pills

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6 Comments

drum Over a year ago

Is there anyway to wait until it completes to return?

Explosion Pills Over a year ago

@drum as far as I can tell you can't, but why would you want to? That would lock up the browser until the operation completed

drum Over a year ago

My application initially gets the current user location. However the user can change its location later on. I don't want the location to reset back to the current location every time the page refreshes.

Explosion Pills Over a year ago

@drum then store their chosen location in a cookie or something

Explosion Pills Over a year ago

@drum yes (they are) and no (it doesn't, really) since cookies are an HTTP construct rather than a php or JavaScript one

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