code: function multiArgs (obj, fn, name, args) {
    if (MULTI_REG.test(name)) {
      let nameList = name.split(MULTI_REG)
      let isApply = typeof args !== 'function'
      for (let i = 0; i < nameList.length; i++) {
        isApply
          ? fn.apply(obj, [nameList[i]].concat(args))
          : fn.call(obj, nameList[i], args)
      }
      return true
    }
    return false
  }
docs: If a string is splitted by space, convert string to array and
  execute function N(n = Array.length) times with the args.
  Return the result that the string is multiple or not.
  
  @param {Object} obj The execute context
  @param {Function} fn The function to be runned
  @param {string} name name
  @param {Array} args args
  @return {boolean}