Add momentum to anything. It's like iScroll, except not for scrolling. Supports mouse and touch events. Less than 1.5KB gzipped.

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Impetus is meant to be used as a part of other components — these simple demos just demonstrate the momentum. For an example of a practical implementation, take a look at Spherical.js.


new Impetus({
    source: myNode,
    update: function(x, y) {
        // whatever you want to do with the values

For more usage details, see the API on GitHub.