REVIEWER

Front

What will the following code display in the browser?
alert("Hello, World!");

Back

A message box with "Hello, World!"

Front

Which method is used to display a prompt box in JavaScript?

Back

alert()

Front

What is the result when the user clicks 'Cancel' in a confirm() box?

Back

false

Front

What will happen if a user enters a value in a prompt() box and clicks "OK"?

Back

The value entered will be returned as a string

Front

Which event is triggered when a user clicks a button on a webpage?

Back

onclick

Front

What is the purpose of the addEventListener() method in JavaScript?

Back

It attaches an event handler to an element.

Front

Which of the following is the correct way to call a function when a button is clicked using addEventListener()? Options: <button onclick="myFunction()">Click me</button>, button.addEventListener("click", myFunction);, <button onClick="myFunction()">Click me</button>, addEventListener("click", myFunction());

Back

button.addEventListener("click", myFunction);

Front

Which of the following event types can be used with the addEventListener() method? mouseover, load, click, All of the above

Back

All of the above

Front

How can you prevent the default action of an event, like submitting a form, in JavaScript? Options: a. Use the preventDefault() method, b. Use the stopPropagation() method, c. Use the return false statement, d. Both A and C

Back

Both A and C

Front

Which method would you use to prompt the user for a response and store their input? Options: prompt(), alert(), confirm(), input()

Back

prompt()