Note: node. js buffer Buffers

Note: node. js buffer Buffers

1. The buffer object created before node. JS 6.0 uses the new buffer () constructor to create an object instance, but has large permissions to obtain sensitive information, so it is recommended to create a buffer object using the Buffer.from () interface.
2. The Buffer instance supports Assii,utf8,utf16le,ucs2-utf16le,base64,latin1,binary-latin1,hex by converting between an explicit character encoding and a normal string.
3. The writing buffer (buf.write) parameter has string,offset,length,encoding, which returns the size of the write.
4. Read Buf.tostring ([endoding[, start[, end]]), encoding uses the encoding, the default is the Utf8,start index location, the default is the 0,end end position.

Note: node. js buffer Buffers