Menu
×
   ❮     
HTML CSS JAVASCRIPT SQL PYTHON JAVA PHP HOW TO W3.CSS C C++ C# BOOTSTRAP REACT MYSQL JQUERY EXCEL XML DJANGO NUMPY PANDAS NODEJS R TYPESCRIPT ANGULAR GIT POSTGRESQL MONGODB ASP AI GO KOTLIN SASS VUE DSA GEN AI SCIPY AWS CYBERSECURITY DATA SCIENCE
     ❯   

Node.js Timers Module

❮ Built-in Modules


Example

Write "Hello" every 500 milliseconds:

var myInt = setInterval(function () {
    console.log("Hello");
}, 500);
Run example »

Definition and Usage

The Timers module provides a way scheduling functions to be called later at a given time.

The Timer object is a global object in Node.js, and it is not necessary to import it using the require keyword.


Timers Methods

Method Description
clearImmediate() Cancels an Immediate object
clearInterval() Cancels an Interval object
clearTimeout() Cancels a Timeout object
ref() Makes the Timeout object active. Will only have an effect if the Timeout.unref() method has been called to make the Timeout object inactive.
setImmediate() Executes a given function immediately.
setInterval() Executes a given function at every given milliseconds
setTimeout() Executes a given function after a given time (in milliseconds)
unref() Stops the Timeout object from remaining active.

❮ Built-in Modules

×

Contact Sales

If you want to use W3Schools services as an educational institution, team or enterprise, send us an e-mail:
[email protected]

Report Error

If you want to report an error, or if you want to make a suggestion, send us an e-mail:
[email protected]

W3Schools is optimized for learning and training. Examples might be simplified to improve reading and learning. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content. While using W3Schools, you agree to have read and accepted our terms of use, cookie and privacy policy.

Copyright 1999-2024 by Refsnes Data. All Rights Reserved. W3Schools is Powered by W3.CSS.