The Canvas API is a client-side scripting technology to allow for the rich creation or alteration of raster images (bitmaps) . It uses vector-based programmatic methods to create shapes, gradients, and other graphical effects, and because it has no DOM, it can perform very quickly. Dedicated scripters can develop games or even full-featured applications using the Canvas API, alone or integrated into HTML or SVG. It is supported natively in most modern browsers (with script libraries extending support to all major browsers), and even on some mobile devices.
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