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A collection of utility functions for animations.

There is a newer version: 10.17.0

function addUniqueItem(array, item) {
    array.indexOf(item) === -1 && array.push(item);
}
function removeItem(arr, item) {
    const index = arr.indexOf(item);
    index > -1 && arr.splice(index, 1);
}

export { addUniqueItem, removeItem };