HTML JS Canvas Question

HTML JS Canvas Question

Professional Development

10 Qs

quiz-placeholder

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HTML JS Canvas Question

HTML JS Canvas Question

Assessment

Quiz

Information Technology (IT)

Professional Development

Practice Problem

Medium

Created by

Sankho Roy

Used 1+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 2 pts

Which method is used to draw a filled rectangle on an HTML <canvas>?

ctx.arc()

ctx.fillRect()

ctx.strokeRect()

ctx.rect()

2.

MULTIPLE CHOICE QUESTION

20 sec • 2 pts

Which method starts a new path in the canvas drawing context?

ctx.begin()

ctx.startPath()

ctx.beginPath()

ctx.newPath()

3.

MULTIPLE CHOICE QUESTION

20 sec • 2 pts

ctx.beginPath();

ctx.arc(50, 50, 20, 0, Math.PI);

ctx.stroke();

Full circle

Half circle


Rectangle

Line

4.

MULTIPLE CHOICE QUESTION

20 sec • 2 pts

What is the main difference between radio buttons and checkboxes?
a) ✅
b)
c) Both allow multiple selections
d) None of the above

Radio buttons allow only one selection in a group, checkboxes allow multiple

Radio buttons allow multiple selections, checkboxes allow only one

Both allow multiple selections

None of the above

5.

MULTIPLE CHOICE QUESTION

20 sec • 2 pts

How do you group multiple radio buttons so that only one can be selected?

Give them the same id

Give them the same name

Give them the same value

Put them inside the same <form>

6.

MULTIPLE CHOICE QUESTION

20 sec • 2 pts

Which is the correct syntax to add a click event listener to a button with id "btn"?

btn.onclick("click", myFunction);

document.getElementById("btn").addEventListener("click", myFunction);

document.getElementById("btn").onClick(myFunction);

btn.addEvent("click", myFunction);

7.

MULTIPLE CHOICE QUESTION

20 sec • 2 pts

What does e.preventDefault() do?

Stops the event from bubbling up

Prevents the browser’s default action

Stops JavaScript execution

Removes the event listener

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