hex dump an ArrayBuffer

hexdump.js

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

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