How can I implement event flags in various programming languages?

How can I implement event flags in various programming languages?

Event flags are a way to signal events in programming. Which languages are you interested in?

I'm looking for examples in Python and JavaScript.

In Python, you can use threading.Event. In JavaScript, you can use Promises or EventEmitter. Would you like code examples?

Yes, please provide code examples for both.

Sure! In Python:

import threading

event_flag = threading.Event()

def event_handler():
    event_flag.wait()  # Wait until the event is set
    print('Event triggered!')

threading.Thread(target=event_handler).start()

event_flag.set()  # Trigger the event

And in JavaScript:

const EventEmitter = require('events');

const eventEmitter = new EventEmitter();
eventEmitter.on('event', () => {
    console.log('Event triggered!');
});
eventEmitter.emit('event');

That's really helpful! Can you explain the differences between these implementations?