freifunk-app/node_modules/core-js/library/modules/$.set-species.js

'use strict';
var core        = require('./$.core')
  , $           = require('./$')
  , DESCRIPTORS = require('./$.descriptors')
  , SPECIES     = require('./$.wks')('species');

module.exports = function(KEY){
  var C = core[KEY];
  if(DESCRIPTORS && C && !C[SPECIES])$.setDesc(C, SPECIES, {
    configurable: true,
    get: function(){ return this; }
  });
};