API
interface Options {
/** @description initialValue */
startVal?: number;
/** @description millisecond (default 1000) */
duration?: number;
/** @description linear, easeOut, easeIn, easeInOut (default 'easeOut') */
easing?: Easing;
/** @description separator (default ',') */
separator?: string;
/** @description animation (default true) */
animation?: boolean;
/** @description slide animation (default false) */
slideAnimation?: boolean;
/** @description decimal (default 0) */
decimal?: number;
}