Hydrophone

Track when a DOM node enters or leaves the screen.

Get Started

npm install hydrophone

API

add(node, events)

Start tracking a DOM node.

• node: DOM node object. (Node)
• events: Object, containing zero or more of the following properties:
  • enters: Function called when the element enters the viewport. (Function)
  • leaves: Function called when the element exits the viewport. (Function)

remove(node)

Stop tracking a DOM node.

• node: DOM node object. (Node)

Usage

import { add, remove } from 'hydrophone'
 
var node = document.getElementById('node')
add(node, {
  enters: () => {
    remove(node) // optional
  }
})
 

License

See the License file.