Q
What does the clearRect method do in Canvas?

Answer & Solution

Answer: Option B
Solution:
The clearRect method in Canvas is used to clear a specified rectangular area, allowing for dynamic content changes.
Related Questions on Average

Which of the following is true about Canvas compared to SVG?

A). A. Canvas is resolution-independent

B). B. Canvas is vector-based

C). C. Canvas is more suitable for static graphics

D). D. Canvas provides DOM access to drawn elements

How can you draw a circle on a Canvas element using JavaScript?

A). A. Using drawCircle method

B). B. Using drawArc method

C). C. Circles cannot be drawn directly

D). D. Using arc method

Which method is used to draw an image onto a Canvas element?

A). A. drawImage

B). B. addImage

C). C. createImage

D). D. loadImage

What is the purpose of the toDataURL method in Canvas?

A). A. To export Canvas data to a server

B). B. To convert Canvas content to an image URL

C). C. To resize the Canvas

D). D. To create a new Canvas

How does Canvas handle transparency in drawings?

A). A. Through opacity settings

B). B. By using blending modes

C). C. Transparent pixels are not supported

D). D. Through CSS styles

What does the getContext method do in Canvas?

A). A. Gets the element's context

B). B. Gets the 2D rendering context

C). C. Gets the Canvas size

D). D. Gets the Canvas ID

How can you access a Canvas element in JavaScript?

A). A. Using getElementById

B). B. Using getElementsByClassName

C). C. Using getElementsByTagName

D). D. All of the above

Which event is commonly used to trigger drawing operations on a Canvas element?

A). A. click event

B). B. load event

C). C. hover event

D). D. submit event

What is the primary purpose of the HTML <canvas> element?

A). A. Embedding videos

B). B. Rendering graphics

C). C. Creating forms

D). D. Playing audio

Which method is used to start a new path in Canvas for drawing shapes?

A). A. startPath

B). B. beginPath

C). C. newPath

D). D. createPath