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Node.js Stream readable.readableEnded Property

Last Updated : 12 Oct, 2021
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The readable.readableEnded property in a readable Stream is utilized to check if the end event is emitted or not. Syntax:
readable.readableEnded
Return Value: It returns true if end event is emitted else it returns false. Below examples illustrate the use of readable.readableEnded property in Node.js: Example 1: JavaScript
// Node.js program to demonstrate the     
// readable.readableEnded Property  

// Include fs module
var fs = require("fs");

// Data to be displayed
var data = '';

// Create a readable stream
var readable = fs.createReadStream("input.text");

// Set the encoding to be utf8. 
readable.setEncoding('UTF8');

// Handling stream event data and end
readable.on('data', function(chunk) {
   data += chunk;
});

// End event
readable.on('end',function() {
   console.log(data);
});

// Calling readableEnded property
readable.readableEnded;
Output:
read: hello
true
end!!
Example 2: JavaScript
// Node.js program to demonstrate the     
// readable.readableEnded Property  

// Include fs module
var fs = require("fs");

// Create a readable stream
var readable = fs.createReadStream("input.text");

// Set the encoding to be utf8. 
readable.setEncoding('UTF8');
readable.on('readable', () => {
  let chunk;

  // Using while loop and calling
  // read method with parameter
  while (null !== (chunk = readable.read())) {

    // Displaying the chunk
    console.log(`read: ${chunk}`);
  }
});

// Calling readableEnded property
readable.readableEnded;
Output:
false
read: hello
Reference: https://nodejs.org/api/stream.html#stream_readable_readableended.

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