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Learn Canvas Faster Than Your Friends in 9 Minutes in JavaScript 48
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=s1FmKW5Jbok
Canvas Element: • The canvas element is defined using the canvas tag in HTML. It has no visual content by itself and serves as a drawing area. • 2D Drawing Context: • JavaScript provides access to the canvas through a context. The most common type is the 2d context, which includes functions for drawing shapes, text, images, and more. • Canvas Size: • The width and height of the canvas can be set using attributes of the canvas element. While CSS can also control size, setting the attributes is preferred for accurate rendering. • Pixel-based Drawing: • Canvas is pixel-based, meaning every object drawn is converted into pixel data. Once drawn, objects lose their individual identities, unlike SVG, where objects remain separate. • Drawing Functions: • The 2D context provides various methods for drawing shapes (like rectangles and circles), lines, images, and text, along with transformations (such as scaling and rotating). • State Management: • Canvas allows for saving and restoring drawing states using save() and restore() methods, which is useful for applying transformations. • Performance: • Canvas is suitable for high-performance, dynamic visual content like animations and games, as it works directly with pixels and can efficiently update visuals. • No Built-in Interactivity: • Unlike SVG, canvas does not have built-in support for events on drawn elements. Developers must calculate positions and implement event listeners manually for interactivity. • Clearing the Canvas: • Developers can clear the canvas using methods like clearRect() or by resetting its width or height attributes to reinitialize it. • Fallback Content: • Browsers that do not support the canvas element will display fallback content placed between the opening and closing tags of canvas, which could include alternative HTML content. • #coding • #funny • #webdevelopment • #python • #javascript
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