use via AMD or CMD

Use via AMD, such as require.js

<img id="preview" alt="imageClipper preview">

<script src="/path/to/require.js"></script>
<script>
    define(function() {
        var imageClipper = require('./dist/imageClipper.js');
        imageClipper('/path/to/image.jpg', function() {
            this.crop(x, y, width, height)
            .toDataURL(function(dataUrl) {
                console.log('cropped!');
                preview.src = dataUrl;
            });
        });
    });
</script>

Use via CMD, such as sea.js

<script src="/path/to/sea.js"></script>
<script>
    seajs.use('./dist/imageClipper.js', function(imageClipper){
        imageClipper('/path/to/image.jpg', function() {
            this.crop(x, y, width, height)
            .toDataURL(function(dataUrl) {
                console.log('cropped!');
                preview.src = dataUrl;
            });
        });
    })
</script>