MAP & FILTER JS

Predict the OUTPUT of this code Snippet: const numbers = [1, 2, 3, 4]; const doubled = numbers.map(item => item * 2); console.log(doubled);

Predict the OUTPUT of this code Snippet: const numbers = [1, 2, 3, 4]; const evens = numbers.filter(item => item % 2 === 0); console.log(evens);

Choose the correct OUTPUT: const students = [ { name: 'Quincy', grade: 96 }, { name: 'Jason', grade: 84 }, { name: 'Alexis', grade: 100 }, { name: 'Sam', grade: 65 }, { name: 'Katie', grade: 90 } ]; const studentGrades = students.filter(student => student.grade >= 90); return studentGrades;

• [ { name: 'Quincy', grade: 96 }, { name: 'Alexis', grade: 100 }, { name: 'Katie', grade: 90 } ]
• [ { name: 'Jason', grade: 84 }, { name: 'Sam', grade: 65 } ]
• [ { name: 'Katie', grade: 90 }, { name: 'Alexis', grade: 100 }, { name: 'Quincy', grade: 96 }]

Predict the output of this code: var arr = [1.5, 2.56, 5.1, 12.33]; var rounded = arr.map(Math.ceil); console.log(rounded);

Choose the correct OUTPUT: let employees = [ { "id": 11, "name":"Abhinav", "salary":75000 }, { "id": 2131, "name":"Raj", "salary":62000 }, { "id": 3012, "name":"Raj", "salary":32000 }] let idsArray = employees.map(employee =>employee.id) console.log(idsArray)

• [{"id":11} , {"id":2131}, {"id":3012}]
• [11,2131,3012]
• [32000,62000,75000]