You can use the FileReader API to read the contents of an image file as binary data. Here's an example code to convert an image to binary data:
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In the example above, we use XMLHttpRequest to download the image file as an array buffer. Then, we convert the array buffer to a binary string and use the btoa function to convert the binary string to base64-encoded binary data, which can be used to embed the image data in HTML or send it to the server.
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