video-ad-sdk/dist/adContainer/helpers/unique.js

VAST/VPAID SDK that allows video ads to be played on top of any player

/**
 * unique will create a unique string every time is called, sequentially and namespaced
 *
 * @ignore
 * @param namespace
 */
export const unique = (namespace) => {
    let count = -1;
    return () => `${namespace}_${++count}`;
};