Do you know what is buffer ?

Temporary storage spot for a chunk of data that can be transferred a small amount at a time

Buffer class is a global class that can be accessed in an application without importing the buffer module.

There ares some ways you can call buffer.

Do you now what is stream ?

Streams are objects that let you read data from a source or write data to a destination in continuous fashion.

There are four type of stream in node js

  1. Readable − Stream which is used for read operation.
  2. Writable − Stream which is used for write operation.
  3. Duplex − Stream which can be used for both read and write operation.
  4. Transform − A type of duplex stream where the output is computed based on input.

Do you knew this ‘Buffer’ & ‘Stream’ before ?