node-destroyable-listener

The package provides a simplist API to extend Node.js's event listener creators. What eventually changes is that creator functions will return an Object with a destroy method so that you don't have to have a reference to event listener's function in order to remove the listener.

That text ☝️ sounds confusing? Check the comparison below.

Removing a listener with the conventional way:

const Events = require('events')

// Create your event bus as usual.
let eb = Events()

// Assign your listener to a variable.
let foo = (bar) => {
    // stuff...
}

// OR
// Create a named function.
function foo(bar) {
    // stuff...
}

// Start listening to an event.
eb.addListener('change', foo)   // eb.on() is an alias for eb.addListener()

// You need to have the reference to `foo` function to do this:
eb.removeListener('change', foo)

Removing a listener with this package:

const Events = require('events')

// Create your event bus as usual.
let eb = Events()

// Start listening to an event.
let changeListener = eb.addListener('change', bar => {

})

// You *do not* need the reference to `foo` function. Simply call the destroy method on the returned listener object.
changeListener.destroy()

Installing

$ npm install destroyable-listener

Contribution

Any pull requests, ideas or issue creations are welcome.

Also, for god's sake, someone rewrite that confusing intro text up there. I don't know how else to put it. 😅