b-tween

A simple but powerful tweening engine for Javascript.

Install

``bash
npm i b-tween
`

Usage

#### ES Module

`js
import BTween from 'b-tween';
const tween = new BTween({
from: {
left: 0
},
to: {
left: 700
},
duration: 500,
easing: 'bounceOut',
onUpdate: (keys) => {
// You can do everything with keys
block.style.left = keys.left + 'px';
}
});
tween.start();
`

#### Commonjs

`js
const BTween = require('b-tween');
...
`

#### Browser

https://unpkg.com/b-tween/dist/b-tween.umd.js

`html


`

Api

$3

#### options.from (object)

#### options.to (object)

#### options.duration (number)

#### options.delay (number)

#### options.easing (string)

* linear
* quadIn
* quadOut
* quadInOut
* cubicIn
* cubicOut
* cubicInOut
* quartIn
* quartOut
* quartInOut
* quintIn
* quintOut
* quintInOut
* sineIn
* sineOut
* sineInOut
* bounceIn
* bounceOut
* bounceInOut

#### options.onStart ( function(keys) {} )

#### options.onUpdate ( function(keys) {} )

#### options.onFinish ( function(keys) {} )

$3

`js
const tween = new Btween({...});
tween.start();
``

LICENSE

MIT © PengJiyuan