Question

Why do we use if /else statements in JavaScript?

a. To repeat something for a fixed number of times.
b. To either do something if a condition is true or do something else.
c. To break out of some block of code.
d. To repeat something while a condition is true.

Answer 1

In JavaScript, we use if/else statements to make decisions based on certain conditions. These statements allow us to execute different blocks of code depending on whether a condition is true or false.

Step-by-step explanation:

In JavaScript, we use if/else statements to make decisions based on certain conditions. These statements allow us to execute different blocks of code depending on whether a condition is true or false. This is useful for creating more dynamic and interactive programs.

For example, let's say we want to display a message on a website only if a user is logged in. We can use an if/else statement to check if the user is logged in. If they are, we display the message; if not, we display a different message or redirect them to the login page.

Another use case for if/else statements is to handle user input. We can use if statements to check if the input meets certain criteria and perform different actions accordingly. For instance, if a user enters a number greater than 10, we can display a specific message, and if they enter a smaller number, we can display a different message.

Answer 2

We use if/else statements in JavaScript to either do something if a condition is true or do something else.

In computer, the If/else statements in JavaScript are crucial for controlling the flow of a program. They allow us to execute specific blocks of code based on whether a given condition evaluates to true or false.

This conditional behavior is essential for making decisions in our code and performing different actions depending on the circumstances.

In conclusion, this is fundamental programming construct that helps create dynamic and responsive programs by branching the execution path based on logical conditions. The Option B is correct.