    const code = input.value;
        para.textContent = eval(code);
      }

      function Person(first, last, age, gender, interests) {
        this.name = {
          first,
          last
        };
        this.age = age;
        this.gender = gender;
        this.interests = interests;
        this.bio = function() {
          // First define a string, and make it equal to the part of
          // the bio that we know will always be the same.
          let string = this.name.first + ' ' + this.name.l