Question

Gmaps APIV3 accepts my x variable, but rejects my weight variable, although both are numbers. Whats going on here?

google.maps.event.addListener(map, 'zoom_changed', function() {
        var zoomLevel = map.getZoom(); //something between 18-12
        var weight =  zoomLevel - 5;
        var x = 3;
        console.log(typeof(x)); // number 
        console.log(typeof(weight)); //number
        $.each(paths, function(i, path){
            path.setOptions({strokeWeight: x}); //works
         // path.setOptions({strokeWeight: weight}); //doesn't work
        })
    });

Added javascript as a tag because I am unsure of whether this is strictly Gmaps related or a language thing I’m unaware of. Remove it if I’m wrong.

Answer 1

can it be that zoomLevel sometimes has not the expected value(18-12) and is <6 ? If yes, weight would be <=0 what is an illegal value.

Assign at least 1:

var weight =  Math.max(1,zoomLevel - 5);

With a zoomLevel >5 your script works for me.