Can you use JavaScript to force-replace a particular image in the browser cache?

Can you use JavaScript to force-replace a particular image in the browser cache?
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answer:I’m not sure about doing it in js but if you make it so that the image/stylesheet/javascript file in question has a unique string after the filename like ’/images/header.jpg?somerandomstring’, when you change that string, it should force browsers to re-cache. I use the project’s current git revision to generate the string. That way, whenever you deploy a new version, it’ll have a new cache string.
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