frontend-admin / Daocheng-Yading

  /**
   * Safe chained function.
   *
   * Will only create a new function if needed,
   * otherwise will pass back existing functions or null.
   */
  export default function createChainedFunction(...funcs) {
    return funcs.reduce((acc, func) => {
      if (func == null) {
        return acc;
      }
      return function chainedFunction(...args) {
        acc.apply(this, args);
        func.apply(this, args);
      };
    }, () => {});
  }