Run an event handler only once
npm install run-event-handler-once!npm !Travis (.com) branch !npm !npm bundle size 
Register an event handler to a desired target and ensure that the event handler is executed only once.
Install run-event-handler-once using npm:
> npm install --save run-event-handler-once
Or via yarn:
> yarn add run-event-handler-once
``javascript
const runEventHandlerOnce = require('run-event-handler-once')
const button = document.querySelector('button')
runEventHandlerOnce(button, 'click', function() {
console.log('Hello!')
})
`
#### target
Type: EventTarget
Register an event handler to a desired target.
#### type
Type: string
The event type.
#### listener
Type: function
An event handler which receives a notification when an event of the specified type occurs.
#### options (Optional)
Type: object
An options object that specifies characteristics about the event listener. The available options are:
- add - An options object that will be passed to addEventListener
- - An options object that will be passed to removeEventListener`
MIT