react-before-after-slider

react-before-after-slider (demo)

A sexy image comparison slider for React.

This component is perfect for displaying the differences between two images, allowing the user to slide over them for an enticing before & after reveal effect.

Install

npm install --save react-before-after-slider

Usage

Check out the demo.

import React, { Component } from 'react'
 
import BeforeAfterSlider from 'react-before-after-slider'
 
class Example extends Component {
  render () {
    const before = 'https://...example1.jpg'
    const after = 'https://...example2.jpg'
 
    return (
      <BeforeAfterSlider
        before={before}
        after={after}
        width={640}
        height={480}
      />
    )
  }
}

Props

Property	Type	Default	Description
before	string	Required	URL of before image to use.
after	string	Required	URL of after image to use.
width	number	Required	Width in pixels for the component.
height	number	Required	Height in pixels for the component.
defaultProgress	number	0.5	Where the progress slider should start (float between 0 and 1).
className	string		Class name to add to root div element.
beforeClassName	string		Class name to add to before element.
afterClassName	string		Class name to add to after element.
beforeProps	object	{ }	Optional extra props to pass to the before BlockImage.
afterProps	object	{ }	Optional extra props to pass to the after BlockImage.
...	...	undefined	Any other props are applied to the root div element.

Note that by default, both before and after will be displayed as background images with background-size: cover via react-block-image.

Todo

• Remove restriction on passing a hard-coded width and height

Related

• justapose - JS library for creating before / after image sliders.
• before-after.js - jQuery image comparison slider.

License

MIT © transitive-bullshit