如何清除重绘的画布 [英] How to clear the canvas for redrawing

问题描述

在实验复合操作和在画布上绘制图像后，我现在正试图删除图像和合成。我如何做到这一点？

After experimenting with composite operations and drawing images on the canvas I'm now trying to remove images and compositing. How do I do this?

我需要清除画布以重绘其他图像;这可以继续一段时间，所以我不认为每次绘制一个新的矩形将是最有效的选择。

I need to clear the canvas for redrawing other images; this can go on for a while so I don't think drawing a new rectangle every time will be the most efficient option.

推荐答案

context.clearRect(0, 0, canvas.width, canvas.height);

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