Node.js Readable Stream pause Event
The ‘pause’ Event in a Readable Stream is emitted when stream.pause() is being called and readableFlowing property is not false.
Syntax:
Event: 'pause'
Return Value: It is emitted if readable.pause() is being called else it is not emitted.
Below examples illustrate the use of pause event in Node.js:
Example 1:
const fs = require( 'fs' );
const readable = fs.createReadStream( "input.txt" );
readable.on( 'data' , (chunk) => {
console.log(`${chunk}`);
});
readable.on( "pause" , () => {
console.log( "pause emitted!" );
});
readable.pause();
console.log( "Program ends...." );
|
Output:
pause emitted!
Program ends....
Example 2:
const fs = require( 'fs' );
const readable = fs.createReadStream( "input.txt" );
readable.on( 'data' , (chunk) => {
console.log(`${chunk}`);
});
readable.on( "pause" , () => {
console.log( "pause emitted!" );
});
console.log( "Program ends...." );
|
Output:
Program ends....
GeeksforGeeks
Here, pause() method is not called so pause event is not emitted.
Reference: https://nodejs.org/api/stream.html#stream_event_pause
Last Updated :
12 Oct, 2021
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