isOperational(callback) {
        let self = this;
        self.flightSuretyApp.methods
            .isOperational()
            .call({
                from: self.owner
            }, callback);
    }
// Checking the operational status of the flight
Checking the operational status of the flight
Checking the operational status of the flight
isOperational(callback) {
        let self = this;
        self.flightSuretyApp.methods
            .isOperational()
            .call({
                from: self.owner
            }, callback);
    }
isOperational ( callback ) { let self = this ; self . flightSuretyApp . methods . isOperational ( ) . call ( { from : self . owner } , callback ) ; }
Checking the operational status of the flight
Checking the operational status of the flight