File SystemBinary DataConvert a Buffer to a stringThe Buffer class provides a .toString() method that converts a Buffer to a string.Copy MarkdownOpenConvert an ArrayBuffer to a Uint8ArrayA Uint8Array is a typed array , a view over the data in an underlying ArrayBuffer .Convert a Buffer to an ArrayBufferThe Node.js Buffer class views and manipulates data in an underlying ArrayBuffer . The buffer property returns that ArrayBuffer .