javascript - Resize ArrayBuffer -

if want create arraybuffer, write: var buff = new arraybuffer(size)

but how possible resize existing buffer? mean, adding more bytes @ end of buffer.

var buf = new arraybuffer(32); buf[31] = 43; var buff = new arraybuffer(buf.bytelength*2);  (var i=0;i<buf.bytelength;i++){     buff[i] = buf[i]; }  buf = buff; 

i've done in c++ this. made bigger array , copy contents on , return larger array , set original.