我的JavaScript拆分功能不起作用

Question

I have the following code which through Google Maps API gets the latitude and longitude of the position clicked on the map

var latitude_longitude = evt.latLng;

When I alert the variable using the code below the following is displayed: (53.4128,-1.51165)

   alert(latitude_longitude);////Gets latitude and Longitude - Latitude first - Longitude second

However I now need to split (53.4128,-1.51165) into 2 variables Latitude and Longitude and have tried using the code below:

var myarr = latitude_longitude.split(",");
var latitude = myarr[0];
alert(latitude);

However the alert doesn't show and I am unsure why?

Answer 1

你可以试试：

var latitude = evt.latLng.lat();

Answer 2

Given this:

var latlng = '53.4128,-1.51165';
console.log(latlng);
var lat = latlng.split(",")[0];
console.log(lat);

I get the output:

53.4128,-1.51165
53.4128

So splitting on the comma is perfectly valid for a string variable with a comma in it. However, I suspect that your latitude_longitude is not a string. Open Developer Tools (or its equivalent for the browser you are using), set a breakpoint and examine the variable. I suspect you will see that it is an object with properties and that you can just access those properties instead of trying to parse its string representation.

Answer 3

first check if your variable is an object or string:

 alert(typeof latitude_longitude);

if your alert output is "object" so you need to convert it to string

var strLatLong=String(latitude_longitude);
var LangLat = strLatLong.split(",");
alert(typeof strLatLong);

....it worked for me