A Writeable that buffers all data it receives up to maxBufferSize (default 10 MB).
If .toString([[encoding,] callback]) or toBuffer([callback]) are called with a callback,
they become asynchronous and wait until the stream has been ended with stream.end() or
an error occured. Without a callback they return all data buffered at that time.
Usage:
constWritableBuffer=require('writeable-buffer');constbuffer=newWritableBuffer({maxBufferSize: 5000,// Only buffer up to 5kb});stream.pipe(buffer,{end : true});buffer.toString('utf8',(error,string)=>{console.log(string);});