Counter-Up2


!Counter-Up2 demo gif

Example Pen: https://codepen.io/bfintal/pen/zYzOGpZ

Counter-Up is a lightweight (only 1.3kb gzipped) module with zero dependencies that counts up to a targeted number when the number becomes visible.

What Can You Count Up?

* Floats: 1.234
* Integers: 1234
* With commas: 1,234.56
* Commas and dots: 12.345,67
* With non-numeric characters: $1,234.56
* Multiple countable values: 604,800 seconds in 10,080 minutes in 168 hours in 7 days

Usage

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Install
``bash
npm install --save counterup2
`

HTML
`html



`

JS

Importing as a module will import the modern JavaScript code.

`js
import counterUp from 'counterup2'

const el = document.querySelector( '.counter' )

// Start counting, do this on DOM ready or with Waypoints.
counterUp( el, {
duration: 1000,
delay: 16,
} )
`

If you want to stop the counter immediately:

`js
// Stop counting. This brings back the original value.
counterUp( el, { action: 'stop' } )
`

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Example Pen: https://codepen.io/bfintal/pen/zYzOGpZ

HTML

`html



`

JS
`js
const { counterUp } = window.counterUp

const el = document.querySelector( '.counter' )

// Start counting, typically you need to call this when the
// element becomes visible, or whenever you like.
counterUp( el, {
duration: 5000,
delay: 16,
} )
`

CDN
* https://unpkg.com/counterup2@2.0.2/dist/index.js

Triggering the Counter

It is up to you to perform the triggering on when to start the count up. Here are some common ways on how to do it:


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Example Pen: https://codepen.io/bfintal/pen/zYzOGpZ

`js
const callback = entries => {
entries.forEach( entry => {
const el = entry.target
if ( entry.isIntersecting ) ) {
counterUp( el, {
duration: 2000,
delay: 16,
} )
}
} )
}

const IO = new IntersectionObserver( callback, { threshold: 1 } )

const el = document.querySelector( '.counter' )
IO.observe( el )
`

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The counting is performed when counterUp is called. To make the counting start when the element becomes visible, use a visibility library like Waypoints

For example:

`js
// On DOM ready.
require( 'waypoints/lib/noframework.waypoints.js' )
const el = document.querySelector( '.counter' )
new Waypoint( {
element: el,
handler: function() {
counterUp( el )
this.destroy()
},
offset: 'bottom-in-view',
} )
``

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An improvement to https://github.com/bfintal/Counter-Up