JavaScript Basics & CodeHS Review

What is the correct function to print text to the screen in JavaScript?

• write

• console.log

• print

• log

• console.print

What keyword is used to define a variable in JavaScript?

• variable

• let

• int

• x

Which of the following is a properly styled and valid JavaScript variable name?

• user_age

• UserAge

• userAge

• User age

What will the following code print? console.log(2 + 2);

• 2 + 2

• 4

• 22

• Nothing

Which symbol is used for multiplication in JavaScript?

• x

• *

• #

• X

Which symbol is used for division in JavaScript?

• %

• /

• //

• *

Which function asks the user for text input?

• readLine

• readln

• text

• console.log

Which function should you use to ask the user for a number?

• readLine

• readInt

• readFloat

• Both readInt and readFloat

Which function returns a random integer between 1 and 10?

• randomInt(1, 10)

• randInt(1, 10)

• Randomizer.int(1, 10)

• Randomizer.nextInt(1, 10)

Which function returns a random decimal between 0 and 1 (inclusive)?

• Randomizer.nextDecimal(0, 1)

• Randomizer.nextFloat(0, 1)

• Randomizer.nextDecimal(0, 1.1)

• Randomizer.nextFloat(0, 1.1)