Detect Scroll Position & Progress With Pure JavaScript – Update On Scroll

Preview:

Description:

Update On Scroll is a scroll position listener which detects the current scroll position and/or progress and triggers certain functions as you scroll down or up the page.

How to use it:

Install the package.

# NPM
$ npm install uos --save

Import the UOS from the package.

import uos from './src/index.js';

Execute functions when you scrolled the page to a specific point.

uos(500, 1200, progress => {
  // 500px - 1200px
});
uos(0.3, 0.8, progress => {
  // 30% - 80%
});