node_modules/jszip/node_modules/core-js/modules/core.get-iterator-method.js

var classof   = require('./_classof')
  , ITERATOR  = require('./_wks')('iterator')
  , Iterators = require('./_iterators');
module.exports = require('./_core').getIteratorMethod = function(it){
  if(it != undefined)return it[ITERATOR]
    || it['@@iterator']
    || Iterators[classof(it)];
};