react-change-highlight, lib to enhance UX by highlighting changes in page


React Change Highlight is a react component to highlight changes in the wrapped component to enhance the UX and grap the focus of the user into the changed value of some parts like the cart in an e-commerce application for example.

This is a real use case we are using in our company

You can play around with it on this sandbox


yarn add react-change-highlight


npm install react-change-highlight


Basically you need to wrap the components you want to highlight on change inside ChangeHighlight element (default import) then add ref attribute to each child in this component which you want to highlight when they got their content changed.

In the following example the count variable comes from state, so when ever that function setCount() is called with any different value the background of that wrapped div will be changed as a default action, but actually it can be any kind of animation you make into the class you will pass to highlightStyle attribute.

import ChangeHighlight from "react-change-highlight";

export default () => {
  const [count, setCount] = useState(0);

  return (
      <div ref={React.createRef()}>{count}</div>

Default styling for highlighting in case the user didn't use a custom styling using the highlightStyle property is rc-highlight class and it is as follow:

.rc-highlight {
  background-color: #f8ffb4;
  transition: all 0.5s ease-in-out;

SSR (server-side rendering)

In case of using this module in a server-side rengering app, you should make sure to create and pass your own className to the highlightStyle attribute, and to make some hint for you, add ssr attribute to the ChangeHighlight element, so it can give you a hint to add a class in your console as a warning like this.

:warning: "react-change-highlight", As you're using server-side rendering, it's a must to create and pass your css class to the highlightStyle attribute for "ChangeHighlight" component


Property Type Default Description
showAfter number 500 number of milli seconds before start highlighting
hideAfter number 2500 number of milli seconds before ending highlighting
containerClassName string className for component container
highlightStyle string className for highlighing content (a must in case of SSR)
disabled boolean false weather you need to disable highlighting
ssr boolean false you need to pass this in case of using it with server-side rendering. (gives a hint for adding style)

Contributors :sparkles:

Thanks goes to these wonderful people ( emoji key ):

This project follows the all-contributors specification. Contributions of any kind welcome!