Node.js writeStream.rows Property

The writeStream.rows property is an inbuilt application programming interface of class WriteStream within tty module which is used to get the number of rows this write Stream object has.

Syntax:

const writeStream.rows

Parameters: This property does not hold any parameter.

Return Value: This property returns the number of rows this write Stream object has.

Example 1: Filename: index.js

// Node.js program to demonstrate the
// writeStream.rows property

// Importing dgram module
var dgram = require('dgram');

// Creating and initializing client
// and server socket
var client = dgram.createSocket("udp4");
var server = dgram.createSocket("udp4");

// Handling the message event
server.on("message", function (msg) {

  // Creating and initializing a
  // WriteStream object
  let WriteStream = process.stdout;

  // Getting number of rows
  // by using rows API
  const col = WriteStream.rows;

  // Displaying the result
  process.stdout.write(msg + col);

  // Exiting process
  process.exit();
})
// Binding server with port
.bind(1234, () => {
});

// Client sending message to server
client.send("Number of rows :- ",
        0, 21, 1234, "localhost");

Output:

Number of rows :- 10

Example 2: Filename: index.js

// Node.js program to demonstrate the
// writeStream.rows property

// Creating and initializing a
// WriteStream object
let WriteStream = process.stdout;

// Getting number of rows
// by using rows API
const col = WriteStream.rows;

// Displaying the result
console.log("Number of rows :- " + col);

Run the index.js file using the following command:

node index.js

Output:

Number of rows :- 10

Reference: https://nodejs.org/dist/latest-v12.x/docs/api/tty.html#tty_writestream_rows