Quiz app For programming languages

1. Which keyword is used to declare a block-scoped variable that cannot be reassigned?

let

var

const

block

2. What is the correct way to create a new array in JavaScript?

var myArray = [1, 2, 3];

var myArray = new Array(1, 2, 3);

var myArray = {1, 2, 3};

var myArray = array(1, 2, 3);

3. What is the output of the following code? console.log(amit); var amit = 10;

"null"

"undefined"

"object"

"string"

4. Which built-in method can be used to find the index of the first occurrence of a value in an array?

indexOf()

findIndex()

search()

getIndex()

5. What does the === operator do in JavaScript?

It assigns a value to a variable.

It checks for equality of values, but not data types.

It checks for equality of both values and data types.

It performs a logical OR operation.

Your Score: 0