The Modern JavaScript Bootcamp (2019) - Conditional (Ternary) Operator

The video tutorial introduces the conditional operator, also known as the ternary operator, as a useful tool for adding conditional logic in JavaScript without using if statements. It provides examples of using the operator to determine voting and drinking eligibility based on age. The tutorial also includes challenges to practice integrating the conditional operator into application code, demonstrating its versatility and efficiency in simplifying code.

What is another name for the conditional operator in JavaScript?

• Quaternary operator

• Binary operator

• Ternary operator

• Unary operator

What is the primary benefit of using the conditional operator?

• It replaces all if statements

• It simplifies code for specific conditional cases

• It increases code execution speed

• It allows for multiple conditions

In the voting eligibility example, what does the conditional operator replace?

• A switch case

• A loop

• An if-else statement

• A function

What is the output when the age is set to 7 in the voting eligibility example?

• Voting age is 18

• Age is invalid

• You cannot vote

• You can vote

In the drinking age example, what happens if the age is less than 21?

• The page is shown

• A warning is logged

• An error page is shown

• Nothing happens

What is the purpose of the functions in the drinking age example?

• To validate input

• To log errors

• To display messages

• To calculate age

In the team size challenge, what message is displayed if the team size is 5?

• Add more members

• Team size: 5

• Too many people on your team

• Team is full

What is the maximum allowed team size in the challenge?

• 5

• 2

• 3

• 4

In the application integration section, what is replaced by the conditional operator?

• Variable declarations

• Function calls

• If-else statements

• Loops

What is the result of using the conditional operator in the application code?

• Slower execution

• Simplified code

• Increased code length

• More complex logic