A simple library for Maidenhead locators. It converts from decimal latitude and longitude to a Maidenhead specification and back.
Usage:
const covertor = new Locator();
This returns an array with the left longitude, bottom latitude, and width and height of the Maidenhead box, all in decimal degrees. const bounds = convertor.locatorToLatLon("EM10");
const locator converter.latLonToLocator(35.456, -47.123)