yEnc string of blob is larger than base64

[AlexeyBoiko]

Hello,
Thank you for the project.

What I am doing wrong.
This browser test encode image to string

/** @param {Blob} img */
const test = img => {
	// yEnc
	img.arrayBuffer()
		.then(arrayBuffer => console.log(dynamicEncode(new Uint8Array(arrayBuffer))));

	// base64
	const reader = new FileReader();
	reader.onloadend = () => console.log(reader.result);
	reader.readAsDataURL(img);
};

yEnc string is 5.5 MB
base64 string is 4.7 MB

My goal is to store image in JSON.
Thank you.

[eshaz]

When the string is being read by the console, it's being represented as UTF-16 characters, which requires a minimum of two bytes per character. This library is meant for embedding binary data as a string within a javascript file. When the string it saved to the file, most characters take up only one byte.

If you encode the string, save it within a javascript file using ascii binary encoding, the size of the string will be a bit over half of what is reported in the console. However, I think JSON requires more characters to be escaped. You can try sending " into the second parameter of yenc.encode(dataToEncode, stringContainerCharacter) to save the string into JSON. I don't recall if I've tested it with JSON though, so let me know if that doesn't work.