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並前往https://www.tabnine.com/code/javascript/functions/builtins/CanvasRenderingContext2D/clearRect

How to use clearRect function in CanvasRenderingContext2D

var ctx = canvas.getContext('2d') ctx.clearRect(0, 0, canvas.width, canvas.height)

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查詢 「clearRect」的人也找了：

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