Service Workers
Create service workers for offline support
AdvancedTopic: Browser API
JavaScript Service Workers Program
This program helps you to learn the fundamental structure and syntax of JavaScript programming.
if ('serviceWorker' in navigator) {
navigator.serviceWorker.register('/sw.js')
.then(reg => console.log('Registered'))
.catch(err => console.error('Error:', err));
}Output
Registered
Understanding Service Workers
Service Workers enable offline functionality.
Note: To write and run JavaScript programs, you need to set up the local environment on your computer. Refer to the complete article Setting up JavaScript Development Environment. If you do not want to set up the local environment on your computer, you can also use online IDE to write and run your JavaScript programs.