Object Drills 2

Enroll in summer school

const studentData = [
  {
    name: 'Tim',
    status: 'Current student',
    course: 'Biology'
  },
  {
    name: 'Sue',
    status: 'Withdrawn',
    course: 'Mathematics'
  },
  {
    name: 'Liz',
    status: 'On leave',
    course: 'Computer science'
  }
];


function enrollInSummerSchool(students) {
  // your code here
  
  var array = [];
  for (var i = 0; i < students.length; i++) {
    students[i].status = 'In Summer school';
    array.push(students[i]);
  } return array;
}

Find by id

const scratchData = [
  {id: 22, foo: 'bar'},
  {id: 28, foo: 'bizz'},
  {id: 19, foo: 'bazz'}
];

function findById(items, idNum) {
 // your code here
for (let i = 0; i < items.length; i++) {
  if (idNum === items[i].id) {
    return items[i];
}
}
}

Make student reports

function makeStudentsReport(data) {
  // your code here
  var array = [];
  for (let i = 0; i < data.length; i++) {
    array.push(data[i].name + ': ' + data[i].grade);
  }
  return array;
  
  
}

Validate object keys

// running the function with `objectA` and `expectedKeys`
// should return `true`
const objectA = {
  id: 2,
  name: 'Jane Doe',
  age: 34,
  city: 'Chicago'
};

// running the function with `objectB` and `expectedKeys`
// should return `false`
const objectB = {
  id: 3,
  age: 33,
  city: 'Peoria'
};

const expectedKeys = [
  'id', 'name', 'age', 'city'
];

function validateKeys(object, expectedKeys) {  
 // your code here
if (Object.keys(object).length === expectedKeys.length) {
  return true;
} else if (Object.keys(object).length !== expectedKeys.length) {
  return false;
}
}