Question 1

What is the correct output of the following code:var obj = { value: 10};var foo = function() { console.log(this.value);};var bar = function() { console.log(this.value);};var boundFoo = foo.call(obj);var boundBar = bar.bind(obj)();console.log(boundFoo === boundBar);

Options :

A : 10 10 false

B : 10 undefined false

C : 10 10 true

D : undefined 10 false

Answer: C

Question 2

What will be the value of result after the following code is executed?var arr = [1, 2, 3, 4, 5];var result = arr.splice(2, 2);

Options :

A : [1, 2, 3, 4, 5]

B : [1, 2, 5]

C : [3, 4]

D : [1, 2, 3, 4, 5, 3, 4]

Answer: C

Question 3

What is the output of the following code snippet?class Shape{}; class Pyramid extends Shape{}; class SquareBasedPyramid extends Pyramid {}; let shape = new SquareBasedPyramid (); console.log(`${shapeinstance of Shape} ${shape instance of Pyramid } ${shape instance of SquareBasedPyramid }`)

Options :

A : true true true

B : false false true

C : true false true

D : false false false

Answer: A

Question 4

What will be the value of result after the following code is executed?var str = "The quick brown fox";var result = str.replace(/[aeiou]/gi, '*');

Options :

A : "Th* qck brwn fx"

B : "Th* quck brwn fx"

C : "Th qck brwn fx."

D : Th* q**ck br*wn f*x

Answer: D

Question 5

What is the output of the following code?const add = (a, b) => a + b; const double = n => add(n, n); console.log(double(3));

Options :

A : 6

B : 9

C : 12

D : 15

Answer: A

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