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
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
Which property sets the line style (width and style) for drawing operations in Canvas?
A). A. lineWidth
B). B. lineStyle
C). C. strokeStyle
D). D. borderStyle
Which method is used to apply transformations like rotation or scaling on Canvas drawings?
A). A. rotate
B). B. scale
C). C. transform
D). D. applyTransform
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
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 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
How do you set the dimensions of a Canvas element in HTML?
A). A. Using size attribute
B). B. Using dimensions attribute
C). C. Using width and height attributes
D). D. Using scale attribute
Which property sets the fill color for drawing operations in Canvas?
A). A. fillStyle
B). B. strokeStyle
C). C. lineWidth
D). D. globalAlpha