JavaScript Conditional Statements

1.		What is the purpose of the break statement in a switch statement?

To exit the switch statement

To execute the next case

To define a new case

To execute a default case

2.		Which of the following is a logical operator in JavaScript?

&&

||

!

All of the above

3.

What is the output of the following code?

var x = "hello";
if (x) {
console.log("x is truthy");
} else {
console.log("x is falsy");
}

x is truthy

x is falsy

hello is truthy

No output

4.

What is the value of x after the following code is executed:

var x = 10;
if (x < 5) {
x = x + 5;
} else if (x < 15) {
x = x + 10;
} else {
x = x + 15;
}
console.log("Value of x is", x);

15

20

25

30

5.		Which of the following is not a valid way to declare a variable in JavaScript?

var x;

let x;

const x;

int x;

6.		Which of the following is a truthy value in JavaScript?

0

null

0

hello

7.

What is the output of the following code?

var x = "10";
var y = 10;
if (x == y) {
console.log("x and y are equal");
} else {
console.log("x and y are not equal");
}

x and y are equal

x and y are not equal

10 and 10 are equal

No output

8.		What is a conditional statement in JavaScript?

A statement that is always executed

A statement that is executed only if a certain condition is met

A statement that is executed multiple times

A statement that defines a function

9.		What is the purpose of the ternary operator in JavaScript?

To declare a new variable

To define a loop

To execute a block of code based on a condition

To assign a value to a variable

10.		Which of the following is a falsy value in JavaScript?

0

undefined

{}

1