merge latitude and longitude to fit google directions api format

mergeLot.js

mergeLot(){
    if (this.state.latitude != null && this.state.longitude!=null)
     {
       let concatLot = this.state.latitude +","+this.state.longitude
       this.setState({
         concat: concatLot
       }, () => {
         this.getDirections(concatLot, "-6.270565,106.759550");
       });
     }

   }