Regular Expression Validation for Latitude and Longitude using Jquery

Hi Developers,

I am creating a web form in that form i have addee Latitude and Longitude fields,

Now i need to validate the Latitude and Longitude details with respective validation.

so i need Regular Expression Validation for Latitude and Longitude using Jquery

If anyone know kindly help me to done this task.

Thanks with

Paul.S

lat should always be between -90 to 90

and long should always be -180 to 180

"text/javascript">
function ValidateLatLng() {
var lat = document.getElementById("txtLat").value;
var lng = document.getElementById("txtLon").value;
if (lat < -90 || lat > 90) {
alert("Latitude must be between -90 and 90 degrees inclusive.");
}
else if (lng < -180 || lng > 180) {
alert("Longitude must be between -180 and 180 degrees inclusive.");
}
else if (lat == "" || lng == "") {
alert("Enter a valid Latitude or Longitude!");
}
}

for anonymous point finding out the correctness of a lat/long is neareset to impossible cause every point in the range could be considered as a right value , so no regular expression can test it completely yet

function isValidLatitude($latitude){
if (preg_match("/^-?([1-8]?[1-9]|[1-9]0)\.{1}\d{1,6}$/", $latitude)) {
return true;
} else {
return false;
}
}
function isValidLongitude($longitude){
if(preg_match("/^-?([1]?[1-7][1-9]|[1]?[1-8][0]|[1-9]?[0-9])\.{1}\d{1,6}$/",
$longitude)) {
return true;
} else {
return false;
}
}
// testng both at a time as
function IsvalidLatLong(lat,long)
{
const regex = new RegExp("/^-?([1]?[1-7][1-9]|[1]?[1-8][0]|[1-9]?[0-9])\.{1}\d{1,6}$/");
return regex.test(lat) && regex.test(long);
}

This is what i have used in my application , so it should work for you.

3 Replies

Know the answer? Post it — somebody with the same question will find it here.

Siddharth Gajbhiye5y ago
Hello Paul

You can create you own regular expression using the following link

https://www.regextester.com/98264

Just type your logic for lattitude and longitude and it will generate for you automatically
Rijwan Ansari5y ago
Try this simple function
function validateLatLng(lat, lng) {
  let pattern = new RegExp('^-?([1-8]?[1-9]|[1-9]0)\\.{1}\\d{1,6}');

  return pattern.test(lat) && pattern.test(lng);
}
Let me know if this helps you.
Regards
Rijwan
Sachin Singh5y ago
lat should always be between -90 to 90
and long should always be -180 to 180
"text/javascript">
        function ValidateLatLng() {
            var lat = document.getElementById("txtLat").value;
            var lng = document.getElementById("txtLon").value;
            if (lat < -90 || lat > 90) {
                alert("Latitude must be between -90 and 90 degrees inclusive.");
            }
            else if (lng < -180 || lng > 180) {
                alert("Longitude must be between -180 and 180 degrees inclusive.");
            }
            else if (lat == "" || lng == "") {
                alert("Enter a valid Latitude or Longitude!");
            }
        }

for anonymous point finding out the correctness of a lat/long is neareset to impossible cause every point in the range could be considered as a right value , so no regular expression can test it completely yet
function isValidLatitude($latitude){
    if (preg_match("/^-?([1-8]?[1-9]|[1-9]0)\.{1}\d{1,6}$/", $latitude)) {
        return true;
    } else {
        return false;
    }
  }
function isValidLongitude($longitude){
    if(preg_match("/^-?([1]?[1-7][1-9]|[1]?[1-8][0]|[1-9]?[0-9])\.{1}\d{1,6}$/",
      $longitude)) {
       return true;
    } else {
       return false;
    }
  }
// testng both at a time as
function IsvalidLatLong(lat,long)
{
const regex = new RegExp("/^-?([1]?[1-7][1-9]|[1]?[1-8][0]|[1-9]?[0-9])\.{1}\d{1,6}$/");
return regex.test(lat) && regex.test(long);
}
This is what i have used in my application , so it should work for you.