hex dump an ArrayBuffer

gistfile1.txt

function traceBuffer(buffer) {
	const bytes = new Uint8Array(buffer);
	trace(`${bytes.length} byte ArrayBuffer\n`);
	for (let i = 0; i < bytes.length; i += 16) {
		let use = Math.min(bytes.length - i, 16);
		let line = "";
		for (let j = i; j < (i + use); j++) {
			if (j !== i)
				line += ", ";
			line += bytes[j].toString(16).padStart(2, 0);
		}
		line += "    ";
		for (let j = i; j < (i + use); j++) {
			let byte = bytes[j];
			if ((32 <= byte) && (byte <= 128))
				line += String.fromCharCode(byte);
			else
				line += ".";
		}

		trace(line, "\n");
	}
}