git.r.bdr.sh - rbdr/dotfiles/blob

   1 'use strict';
   2
   3 var iteratorSymbol = require('es6-symbol').iterator;
   4
   5 module.exports = function () {
   6         var arr = ['foo', 1], iterator, result;
   7         if (typeof arr[iteratorSymbol] !== 'function') return false;
   8         iterator = arr[iteratorSymbol]();
   9         if (!iterator) return false;
  10         if (typeof iterator.next !== 'function') return false;
  11         result = iterator.next();
  12         if (!result) return false;
  13         if (result.value !== 'foo') return false;
  14         if (result.done !== false) return false;
  15         return true;
  16 };