The underlying pixel data of an area of a element. It is created using the ImageData() constructor or creator methods on the CanvasRenderingContext2D object associated with a canvas: createImageData() and getImageData(). It can also be used to set a part of the canvas by using putImageData().
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Readonly
Returns the one-dimensional array containing the data in RGBA order, as integers in the range 0 to 255.
Returns the actual dimensions of the data in the ImageData object, in pixels.
The underlying pixel data of an area of a
MDN Reference