javascript - google maps api add a LatLng to the start of a polyline -


i using google maps api draw gps track on map. using polyline overlay. far, works fine, dynamically add , remove points both sides of polyline.

for removing points , adding points end of polyline know can use 

google.maps.polyline.getpath().removeat(index);

and

google.maps.polyline.getpath().push(latlng);

is there function add points start of polyline easily? (similar how 1 use array.unshift(value) adding element start of array)

the path of polyline mvcarray class has array methods. https://developers.google.com/maps/documentation/javascript/3.exp/reference#mvcarray

therefore use insertat() insert new point @ index 0.

insertat(0, item)

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