React Inview checker with only javascript

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711.3.06 years ago8 years agoMinified + gzip package size for react-inview-js in KB


React Inview
Checks if component is inview. Built with vanilla javascript.
Currently in beta, please help contribute! Screenshot


Requires nodejs.
npm install react-inview-js


  • showGuides: creates visual indicator of viewport size
  • offsetY: range 0 to 1. changes how large the viewport should be. Defaults to 0 which is the full size of browser.
  • fullElementInView: boolean(true/false) - false means just the top of the element is in view - good for large elements

Received Props

  • this.props.elementIsInView: True/false value based on if element is in view
  • this.props.elementHasBeenInView: True/false if the element has been in view

How To Use

import React, { Component } from 'react';
import ReactInview from 'react-inview-js';

class MyComponent extends Component {

 render () {
    const inView = this.props.elementIsInView;
    const elementHasBeenInView = this.props.elementHasBeenInView;

    // Change classname based on boolean
    const viewClassName = (inView)? 'is--inview-true' : 'is--inview-false';
    const elementHasBeenInView = (elementHasBeenInView)? 'Element has been seen' : 'Element has not been in view';

    return (
      <article className={viewClassName}>
        <h1>React InView -- { elementHasBeenInView }</h1>

const InviewOptions = {offsetY: 0.8, showGuides: true, fullElementInView: false}

export default ReactInview(InviewOptions)(MyComponent);


npm install && npm install react react-dom && npm start