Fire callbacks as you scroll (or a low-level version of Waypoints)
npm install scrolltriggerFire callbacks as you scroll (or a low-level version of Waypoints).
With npm do:
``bash`
npm install scrolltriggerUsage
`js
var Scrolltrigger = require('scrolltrigger')
var triggers = new Scrolltrigger(window, 'y')
// callback will fire when the window scroll position reaches 1000 pixels``
triggers.add({
threshold: function () {
return 1000
},
callback: function (direction, trigger) {
console.log(direction) // 1 is forward, -1 is backwards
// => 1
}
})
MIT