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@hapi/podium

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@hapi/podium

Node compatible event emitter with extra features

  • 5.0.1
  • latest
  • Source
  • npm
  • Socket score

Version published
Weekly downloads
961K
decreased by-17.38%
Maintainers
7
Weekly downloads
 
Created

What is @hapi/podium?

@hapi/podium is an event emitter with support for multiple event channels, filters, and event arguments. It is designed to be a more powerful and flexible alternative to the built-in Node.js EventEmitter.

What are @hapi/podium's main functionalities?

Basic Event Emission

This feature allows you to emit and listen to events. The example demonstrates creating a Podium instance, registering an event listener, and emitting an event.

const Podium = require('@hapi/podium');
const podium = new Podium('event');
podium.on('event', (data) => {
  console.log(data);
});
podium.emit('event', { message: 'Hello, world!' });

Multiple Event Channels

This feature allows you to manage multiple event channels. The example shows how to create a Podium instance with multiple events and handle them separately.

const Podium = require('@hapi/podium');
const podium = new Podium(['event1', 'event2']);
podium.on('event1', (data) => {
  console.log('Event 1:', data);
});
podium.on('event2', (data) => {
  console.log('Event 2:', data);
});
podium.emit('event1', { message: 'Hello from event 1!' });
podium.emit('event2', { message: 'Hello from event 2!' });

Event Filters

This feature allows you to filter events based on custom criteria. The example demonstrates setting up a filter that only processes events of a specific type.

const Podium = require('@hapi/podium');
const podium = new Podium('event');
podium.on('event', { filter: (data) => data.type === 'type1' }, (data) => {
  console.log('Filtered event:', data);
});
podium.emit('event', { type: 'type1', message: 'This will be logged' });
podium.emit('event', { type: 'type2', message: 'This will not be logged' });

Event Arguments

This feature allows you to pass multiple arguments to event listeners. The example shows how to emit an event with multiple arguments and handle them in the listener.

const Podium = require('@hapi/podium');
const podium = new Podium('event');
podium.on('event', (arg1, arg2) => {
  console.log('Arguments:', arg1, arg2);
});
podium.emit('event', 'arg1', 'arg2');

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Package last updated on 11 Feb 2023

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