Google Maps API v3 MapTypeId作为变量

Question

设置Google地图类型时：

map.setMapTypeId(google.maps.MapTypeId.TERRAIN);

我可以用包含字符串“TERRAIN”，“SATELLITE”等的js变量替换“TERRAIN”吗？

Answer 1

是的，请这样称呼：

var mapType = "TERRAIN";
map.setMapTypeId(google.maps.MapTypeId[mapType]);

Answer 2

//Console output of MapTypeId
google.maps.MapTypeId
{ROADMAP: "roadmap", SATELLITE: "satellite", HYBRID: "hybrid", TERRAIN:"terrain"}
HYBRID:"hybrid"
ROADMAP:"roadmap"
SATELLITE:"satellite"
TERRAIN:"terrain"


//change mapTypeId
map.setMapTypeId("terrain"); //example with hybrid
//or
map.setMapTypeId(google.maps.MapTypeId.TERRAIN); // same example with hybrid
//or as you want
map.setMapTypeId(google.maps.MapTypeId["TERRAIN"]); // same example with hybrid