GMaps.js, is a jQuery plugin, allows Google Maps integration in a easiest way. Google Maps, like any other Google product is already easy-to-use and their API is not that complicated to work with.
Besides adding a standard map of a specific location, we can define the zoom level, add markers, get the location of a user (HTML5 geolocation), define routes, draw polylines and more with only few lines of code.
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And, it has callbacks on every action to integrate any custom events. GMaps.js is not documented in detail, however, it has examples of each feature.