ex7-mindPrivacy.js

/*------------------------------------------------------------------------------
Full description at: https://github.com/HackYourFuture/Assignments/tree/main/1-JavaScript/Week3#exercise-7-mind-the-privacy

1. Complete the `filterPrivateData()` function. It should take a single 
   parameter: the array of employee records.
2. It should create a _new_ array, containing employee data without the private
   data.
3. Use object destructuring to extract the non-private properties from an 
   employee record (an `object`) and object literal shorthand to create a new 
   employee record with just the non-private parts (name, occupation and email).
4. Return the new array as the return value of the function.
5. Run the exercise and verify that it passes all the unit tests.
------------------------------------------------------------------------------*/
const employeeRecords = [
  {
    name: 'John',
    occupation: 'developer',
    gender: 'M',
    email: 'john.doe@somewhere.net',
    salary: 50000,
  },
  {
    name: 'Jane',
    occupation: 'manager',
    gender: 'F',
    email: 'jane.eyre@somewhere.net',
    salary: 60000,
  },
];

// ! Function under test
function filterPrivateData(records) {
  // Create a new array by mapping over the original records
  return records.map((record) => {
    // Destructure the non-private properties
    const { name, occupation, email } = record;
    // Return a new object with only the allowed properties
    return { name, occupation, email };
  });
}

// ! Test functions (plain vanilla JavaScript)
function test1() {
  console.log('Test 1: filterPrivateData should take one parameter');
  console.assert(filterPrivateData.length === 1);
}

function test2() {
  console.log('Test 2: gender and salary should be filtered out');
  const expected = [
    {
      name: 'John',
      occupation: 'developer',
      email: 'john.doe@somewhere.net',
    },
    {
      name: 'Jane',
      occupation: 'manager',
      email: 'jane.eyre@somewhere.net',
    },
  ];
  const result = filterPrivateData(employeeRecords);
  console.assert(JSON.stringify(result) === JSON.stringify(expected));
}

function test() {
  test1();
  test2();
}

test();