JavaScript Programming Quiz

What is the primary purpose of using functions in programming?

• To make code easier to understand

• To avoid code repetition

• To make code reusable

• All of the above

How do you correctly call a function named calculateTotal()?

• calculateTotal;

• function calculateTotal();

• calculateTotal();

• function calculateTotal;

Which statement describes the difference between calling and defining a function?

• Defining creates the function's contents, calling executes it

• Calling creates the function, defining executes it

• They are different names for the same process

• Defining names the function, calling writes its code

What keyword is required to declare a variable in JavaScript?

• variable

• int

• let

• x

How would you declare a variable and assign it the value 10?

• variable number = 10;

• let number = 10;

• int number = 10;

• number := 10;

What will the following code output? console.log(5 + 3);

• 5 + 3

• 8

• Nothing

• 5 + 3

Which function is used to get text input from a user?

• readText()

• readLine()

• getText()

• inputText()

What symbol is used for division in JavaScript?

• ÷

• /

• \

• //

What will this code print? let hobby = "coding"; console.log("I enjoy " + hobby);

• I enjoy coding

• I enjoy + hobby

• "I enjoy coding"

• I enjoy "coding"

Which function is used to get numeric input from a user?

• readNum()

• readLine()

• readInt()

• getNumber()