toString < Object < JavaScript

The toString() method of an object returns it as a string. Every JavaScript object (Date, Array, etc) has a toString() method.

    
    const flight = {
      start: "Detroit",
      end: "Miami",
      airline: "Delta",
      jet: 767
    };

    console.log(flight.toString());
    // "[object Object]"

    console.log(flight);
    {
      airline: "Delta",
      end: "Miami",
      jet: 767,
      start: "Detroit"
    }