convert lat lng to dms format
You can get it on npm.
npm install latlng-to-dms --save
Require this module in your .js file and use it!
var latlngToDms = require('latlng-to-dms');
latlngToDms('37.419584, -122.087586')
// 37° 25´ 10.50" N 122° 5´ 15.31" W