Answer & Solution
Answer: Option B
Solution:
The clearRect method in Canvas is used to clear a specified rectangular area, allowing for dynamic content changes.
Q
What does the clearRect method do in Canvas?
Related Questions on Average
Which rendering context is commonly used for 2D graphics in Canvas?
A). A. 3d
B). B. webgl
C). C. 2d
D). D. canvas
What does the fillRect method do in Canvas?
A). A. Draws a rectangle with a fill color
B). B. Clears the Canvas
C). C. Draws a circle
D). D. Draws a line
How does Canvas handle text rendering?
A). A. As vector-based text
B). B. As bitmap-based text
C). C. Using external font libraries
D). D. Text cannot be rendered on Canvas
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
What is the primary purpose of the HTML
A). A. Embedding videos
B). B. Rendering graphics
C). C. Creating forms
D). D. Playing audio
Which property sets the fill color for drawing operations in Canvas?
A). A. fillStyle
B). B. strokeStyle
C). C. lineWidth
D). D. globalAlpha
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
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
What happens if a browser does not support the
A). A. The Canvas is displayed with default settings
B). B. An error is shown
C). C. The Canvas is rendered as an image
D). D. It falls back to alternative content