export default class IdGenerator implements Iterator<String> {
    private current = 1;

    public next(): IteratorResult<String> {
        return {
            done: false,
            value: '_' + Math.random().toString(36).substr(2, 9) + '-' + this.current++
        };
    }

    public [Symbol.iterator](): IterableIterator<String> {
        return this;
    }
}