In https://github.com/nodejs/node/blob/master/doc/api/buffer.markdown, `b.writeUint16LE(0x90ab, 0);` should be `b.writeUInt16LE(0x90ab, 0);`.
In https://github.com/nodejs/node/blob/master/doc/api/buffer.markdown,
b.writeUint16LE(0x90ab, 0);should beb.writeUInt16LE(0x90ab, 0);.