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Node.js | Stream writable.writableObjectMode Property
  • Last Updated : 25 Feb, 2020

The writable.writableObjectMode property in Stream module is used to get the object mode value of the Writable stream.

Syntax:

writable.writableObjectMode 

Return Value: It returns true if the objectMode is set to true otherwise returns false.

Below examples illustrate the use of writable.writableObjectMode property in Node.js:

Example 1:






// Node.js program to demonstrate the     
// writable.writableObjectMode Property
   
// Accessing stream module
const stream = require('stream');
   
// Creating a stream and creating 
// a write function
const writable = new stream.Writable({
   
  // setting value of objectMode
  objectMode: true,
   
  // Write function with its 
  // parameters
  write: function(chunk, encoding, next) {
  
    // Converting the chunk of
    // data to string
    console.log(chunk.toString());
    next();
  }
});
  
// Writing data
writable.write('GfG')
   
// Calling writable.writableObjectMode 
// Property
writable.writableObjectMode;

Output:

GfG
true

Example 2:




// Node.js program to demonstrate the     
// writable.writableObjectMode Property
   
// Accessing stream module
const stream = require('stream');
   
// Creating a stream and creating 
// a write function
const writable = new stream.Writable({
   
  // Write function with its 
  // parameters
  write: function(chunk, encoding, next) {
   
    // Converting the chunk of
    // data to string
    console.log(chunk.toString());
    next();
  }
});
   
// Writing data
writable.write('GfG')
   
// Calling writable.writableObjectMode 
// Property
writable.writableObjectMode;

Output

GfG
false

Here, the objectMode is not set so, by default it is set to false.

Reference: https://nodejs.org/api/stream.html#stream_writable_writableobjectmode

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