TypeScript for Beginners - Switch Statement

The video tutorial explains the switch statement, a more readable alternative to if-else ladders. It covers the syntax, including defining cases and a default case. A practical example is demonstrated using Visual Studio Code, showing how to implement and test a switch statement. The tutorial highlights the importance of the break statement and how the default case executes when no match is found.

What is the primary advantage of using a switch statement over an if-else ladder?

• It is faster in execution.

• It is more concise and readable.

• It executes all cases by default.

• It allows for more complex conditions.

In the provided example, what is the initial value assigned to the variable X?

• 1

• 2

• 5

• 3

What is the purpose of the break statement in a switch case?

• To terminate the switch statement.

• To loop back to the first case.

• To prevent the execution of subsequent cases.

• To execute the default case.

What happens if none of the cases in a switch statement match the given value?

• The first case is executed.

• The switch statement is skipped.

• The default case is executed.

• An error is thrown.

How can you ensure that only the matching case in a switch statement is executed?

• By placing the default case first.

• By using a break statement after each case.

• By using a loop.

• By using an if-else statement.