/**
 * Safe chained function
 *
 * Will only create a new function if needed,
 * otherwise will pass back existing functions or null.
 *
 * @param {function} functions to chain
 * @returns {function|null}
 */
function createChainedFunction(...funcs) {
    return funcs
        .filter((f) => f != null)
        .reduce((acc, f) => {
        if (typeof f !== "function") {
            throw new Error("Invalid Argument Type, must only provide functions, undefined, or null.");
        }
        if (acc === null)
            return f;
        return function chainedFunction(...args) {
            // @ts-ignore
            acc.apply(this, args);
            // @ts-ignore
            f.apply(this, args);
        };
    }, null);
}
export default createChainedFunction;