easing

Easing Functions Without the Framework Cruft

npm install easing
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easing

easing

Easing functions simply describe functions that are used for the purpose of easing. Give it an array of arbitrary size and it fills those values.

Load it up

Simply include browser-easing.js and you can require('easing') directly in your client side code.

Simple

var x = Easing(11,'cubic');


And there you have it, an array of eleven elements whose value starts at 0 and ends at 1 which are populated with
cubic easing values.

[ 0,
    0.0010000000000000002,
    0.008000000000000002,
    0.02700000000000001,
    0.06400000000000002,
    0.125,
    0.21600000000000008,
    0.3430000000000001,
    0.5120000000000001,
    0.7290000000000001,
1 ]

Types of Easing

Linear

For an array of 42 values that are linear,

Easing(42,'linear')

Quadratic

For an array of 100 values that are quadratic,

Easing(100,'quadratic')

Cubic

For an array of 42 cubic values,

Easing(42,'cubic')

Quartic

For an array of 1492 quartic values,

Easing(1492,'quartic')

Quintic

Easing(25,'quintic')

Sinusoidal

Easing(333,'sinusoidal')
Easing(333,'sin')

Circular

Easing(314,'circular')

Exponential

Easing(81,'exponential')

Optional options

End To End

If we wanted to go from 0 to 1 back to 0 quadratically, simply call

Easing(100,'quadratic',{endToEnd:true});

Invert

If we want to go from 1 to 0 (or 1 to 0 back to 1) instead of 0 to 1, say 'linear' style, simply call

Easing(100,'linear',{invert:true});

You can mix and match these options.

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