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Chapter 5&6_Javascript2 (DOM (elements (child nodes (text node,…
Chapter 5&6_Javascript2
DOM
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purpose: dynamically access and update(get, change, add, delete) HTML document
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canvas
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Drawing graphics
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Drawpixels,lines,shapes(filledornot),orimagesbycalling methods
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drawing an arc/circle
arc(x, y, r, θ0, θ1, dir)
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