npm install --save react-ui-scrollspyOR
yarn add react-ui-scrollspynpm install --save react-ui-scrollspy@2.2.0OR
yarn add react-ui-scrollspy@2.2.0Try it your self here!
| Demo 1 | Demo 2 |
|---|---|
 |  |
- In your navigation component
<div> <p data-to-scrollspy-id="first">Section 1</p> <p data-to-scrollspy-id="second">Section 2</p> </div>- Wrap the elements you want to spy on in the
<ScrollSpy>component.
import ScrollSpy from "react-ui-scrollspy"; <ScrollSpy> <div id="first"> Lorem ipsum dolor sit amet consectetur adipisicing elit. Aut dolores veritatis doloremque fugit. Soluta aperiam atque inventore deleniti, voluptatibus non fuga eos magni natus vel, rerum excepturi expedita. Tempore, vero! </div> <div id="second"> Lorem ipsum dolor sit amet consectetur adipisicing elit. Aut dolores veritatis doloremque fugit. Soluta aperiam atque inventore deleniti, voluptatibus non fuga eos magni natus vel, rerum excepturi expedita. Tempore, vero! </div> </ScrollSpy>- Write styles for when the navigation element which is active in your
index.css
.active-scroll-spy { background-color: yellowgreen; border-radius: 15px; }Incase the ScrollSpy is not working the way you expected, you can try the following:
-
Reduce the value of
scrollThrottle. -
If your page contains a
navbaraheaderconsider adding the followingCSS
html { scroll-padding-top: 120px; /* height of your navbar */ }| Attributes | Type | Description | Default | Required |
|---|---|---|---|---|
children | ReactNode | Each direct child Element should contain an id | - | yes |
| Attributes | Type | Description | Default | Required |
|---|---|---|---|---|
navContainerRef | MutableRefObject <HTMLDivElement | null> | ref to your navigation container containing items with data-to-scrollspy-id attributes | - | no |
parentScrollContainerRef | MutableRefObject <HTMLDivElement | null> | If you want to spy only on a particular scrollable container (Element) then pass its ref to this prop | - | no |
| Attributes | Type | Description | Default | Required |
|---|---|---|---|---|
scrollThrottle | number | In milliseconds to throttle the onscroll event. Lower the number, better the response time, higher the performance cost | 300 | no |
| Attributes | Type | Description | Default | Required |
|---|---|---|---|---|
onUpdateCallback | (id: string) => void | Executes this function whenever you scroll to a new ScrollSpy child Element, callback returns the id of that Element as well | - | no |
| Attributes | Type | Description | Default | Required |
|---|---|---|---|---|
offsetTop | number | Spy will be fired when it has been scrolled offsetTop beyond 50% to the top of the containing element | 0 | no |
offsetBottom | number | Spy will be fired when it has been scrolled offsetBottom beyond 50% to the bottom of the containing element | 0 | no |
| Attributes | Type | Description | Default | Required |
|---|---|---|---|---|
useDataAttribute | string | To customize the string after data- | "to-scrollspy-id" | no |
activeClass | string | To customize the class added when the Element in view | "active-scroll-spy" | no |
useBoxMethod | boolean | Set to false if you want your spy to be active only if more than 50% of that div is in the viewport | true | no |
updateHistoryStack | boolean | Set to false to disable the URL getting automatically updated when scrolling | true | no |
- Hussain Pettiwala (@pettiboy)