const employeeDetails = [
   {
      employeeName: "Chris",
      employeeAge: 25,
      employeeTechnology: "Java"
   },
   {
      employeeName: "David",
      employeeAge: 27,
      employeeTechnology: "Javascript"
   },
   {
      employeeName: "Bob",
      employeeAge: 24,
      employeeTechnology: "Python"
   }
]
var firstName = employeeDetails[1].employeeName;
var age = employeeDetails[1].employeeAge;
var technology = employeeDetails[1].employeeTechnology; 
console.log(firstName);
console.log(age);
console.log(technology);

node fileName.js.

PS C:\Users\Amit\javascript-code> node demo248.js
David
27
Javascript