JavaScript Conditional Statements

1.		Which of the following is the correct syntax for an if statement in JavaScript?

if x = 10 {

if (x == 10)

if (x = 10)

if [x == 10]

2.		Which of the following is the correct syntax for a ternary operator in JavaScript?

condition ? true : false;

true : false ? condition;

true ? condition : false;

condition : true ? false;

3.

What is the output of the following code?

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

x is equal to y

x is not equal to y

undefined

Error

4.

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

5.		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

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

&&

||

!

All of the above

7.

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

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

var x;

let x;

const x;

int x;

9.		What is the purpose of the else statement in a conditional statement?

To provide an alternative condition to check

To define a function

To perform a specific action

To end the conditional statement

10.		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