JavaScript Basics Quiz

What keyword is used to create a variable in JavaScript?

• define

• let

• var

• make

Which code correctly assigns the value 5 to the variable score?

• score = let 5;

• var score = 5;

• set score = 5;

• score <- 5;

Which block allows a user to type input in a Design tab element?

• label

• dropdown

• text input

• button

What is the correct syntax to declare a variable in JavaScript?

• create variable x = 5;

• int x = 5;

• var x = 5;

• x := 5;

Which keyword is used to store a number or string in JavaScript?

• define

• function

• var

• input

What is the function of setText(id, text)?

• Stores text in a variable

• Gets text from the screen

• Sets text of a UI element

• Deletes a text input

Which event type is used to detect a button click in onEvent()?

• hover

• input

• submit

• click

What is the purpose of getText("inputId")?

• Sets a label's text

• Retrieves user input from a text field

• Hides a button

• Resets the app

What does the onEvent function do?

• Sets text in an element

• Handles user interaction with a UI element

• Defines a variable

• Changes a variable's value

In the line

setText("messageLabel", "Hello!");

what does "messageLabel" refer to?

• The ID of a screen

• A string variable

• The text to display

• The ID of a UI element