Rounding the place.geometry.location value in Google Maps API

I am using Google Maps API to do Reverse Geocoding (Address Lookup). My code result a extremely detail Lat Long as:

(-7.799250499999999, 110.40451239999993)

How to round the place.geometry.location result into a certain digit decimals?

e.g. (-7.7992505, 110.4045124)

This is the scheme of my code:

In my HTML

<div id="infowindow-content">
    <span id="place-coord"></span>
</div>

In my Javascript

...    
function() {
    ...
    infowindowContent.children['place-coord'].textContent = place.geometry.location;
    ...
}
...

I had tried to use:

place.geometry.location.toUrlValue(precision?:number)

place.geometry.location.toUrlValue(precision?:7)

and result some crash.

Any helps would be highly appreciated. Thanks

Answer

The precision?:number code must be replaced by an integer.

place.geometry.location.toUrlValue(WriteYourDesiredPrecisionHere)

in this question, it sould be:

place.geometry.location.toUrlValue(7)