on Screencast

Screencast

Resources

// Assumes tmpdata has been set to your geojson file
$.each(tmpdata.features, function() {
      $.each(this.geometry.coordinates, function () {
             $.each(this, function() {
                   this[0] = Math.round(this[0] * 100000)/ 100000;
                       this[1] = Math.round(this[1] * 100000)/ 100000;
            });
         });
});

JSON.stringify(tmpdata);