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:
// 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:
// 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.