Finals Review Intro to Programming

What is the primary purpose of the return statement in a JavaScript function?

• To terminate the program execution

• To send a value back from the function

• To print output to the console

• To declare a new variable

In JavaScript, which operator is used to check if two values are not equal?

• <>

• !=

• /=

• ^=

What will be the output of the following code? let num = 8; if (num % 2 == 0) { console.log("Even"); } else { console.log("Odd"); }

• Odd

• 8

• Even

• Error

How many iterations will this loop execute? for (let i = 0; i < 5; i++) { console.log(i); }

• 0

• 5

• 4

• 6

What does the readInt() function return?

• A string

• A boolean

• An integer

• A floating-point number

What happens if a while loop's condition never becomes false?

• The loop executes once

• The program crashes

• The loop runs indefinitely

• The loop is skipped

When does the else block in an if/else statement execute?

• When the if condition is true

• When the if condition is false

• Every time the program runs

• Only when there's an error

Which operator is used for string concatenation in JavaScript?

• &

• .

• +

What will this function return? function double(x) { return x * 2; }

• x + x

• x * x

• 2x

• x * 2

How do you properly declare a variable in JavaScript?

• variable x = 5;

• let x = 5;

• x := 5;

• make x = 5;