The readable.readableFlowing property in a readable stream that utilized to check if the streams are in flowing mode or not.
Syntax:
readable.readableFlowing
Return Value: It returns true if stream is in flowing mode else it returns false.
Below examples illustrate the use of readable.readableFlowing property in Node.js:
Example 1:
// Node.js program to demonstrate the // readable.readableFlowing Property // Include fs module var fs = require( "fs" );
var data = '' ;
// Create a readable stream var readerStream = fs.createReadStream( 'input.txt' );
// Handling data event readerStream.on( 'data' , function (chunk) {
data += chunk;
}); // Calling readableFlowing property readerStream.readableFlowing; |
Output:
true
Example 2:
// Node.js program to demonstrate the // readable.readableFlowing Property // Include fs module const fs = require( "fs" );
// Constructing readable stream const readable = fs.createReadStream( "input.txt" );
// Instructions for reading data 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 readable.readableFlowing // Property readable.readableFlowing; |
Output:
false
Reference: https://nodejs.org/api/stream.html#stream_readable_readableflowing.