react-now-you-see-me
A React component for determining when an element is within a given threshold of the viewport, horizontally.

Installation
npm i react-now-you-see-me
You'll also need React and ReactDOM peer dependencies: npm i react react-dom
.
Usage
import * as React from 'react'
import InView from 'react-now-you-see-me'
const Foo = (props) => (
<SomeCarouselComponent>
{someSlides.map((_, i) =>
<InView key={i} threshold={0} boundingLeft={100} boundingRight={100}>
{(isInView) =>
isInView
? <span>I am totally in view right now, awesome!</span>
: <span>You can't see me :(</span>
}
</InView>
)}
</SomeCarouselComponent>
)
LICENSE
MIT